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        Module&nbsp;fastandsimple
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<h1 class="epydoc">Source Code for <a href="fastandsimple-module.html">Module fastandsimple</a></h1>
<pre class="py-src">
<a name="L1"></a><tt class="py-lineno">  1</tt>  <tt class="py-line"><tt class="py-comment"># -*- coding: utf-8 -*-</tt> </tt>
<a name="L2"></a><tt class="py-lineno">  2</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt id="link-0" class="py-name" targets="Module pygml=pygml-module.html"><a title="pygml" class="py-name" href="#" onclick="return doclink('link-0', 'pygml', 'link-0');">pygml</a></tt> <tt class="py-keyword">import</tt> <tt id="link-1" class="py-name" targets="Class pygml.Graph=pygml.Graph-class.html"><a title="pygml.Graph" class="py-name" href="#" onclick="return doclink('link-1', 'Graph', 'link-1');">Graph</a></tt> </tt>
<a name="L3"></a><tt class="py-lineno">  3</tt>  <tt class="py-line"><tt class="py-keyword">from</tt> <tt class="py-name">math</tt> <tt class="py-keyword">import</tt> <tt class="py-name">ceil</tt><tt class="py-op">,</tt> <tt class="py-name">floor</tt> </tt>
<a name="L4"></a><tt class="py-lineno">  4</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">sys</tt> </tt>
<a name="L5"></a><tt class="py-lineno">  5</tt>  <tt class="py-line"><tt class="py-comment">#import cProfile</tt> </tt>
<a name="L6"></a><tt class="py-lineno">  6</tt>  <tt class="py-line"> </tt>
<a name="FastAndSimple"></a><div id="FastAndSimple-def"><a name="L7"></a><tt class="py-lineno">  7</tt> <a class="py-toggle" href="#" id="FastAndSimple-toggle" onclick="return toggle('FastAndSimple');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html">FastAndSimple</a><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="FastAndSimple-expanded"><a name="L8"></a><tt class="py-lineno">  8</tt>  <tt class="py-line">    <tt class="py-docstring">"""Implementation of the paper "Fast and Simple Horizontal Coordinate Assignment" by Ulrik Brandes and Boris K&#246;pf."""</tt> </tt>
<a name="FastAndSimple.__init__"></a><div id="FastAndSimple.__init__-def"><a name="L9"></a><tt class="py-lineno">  9</tt> <a class="py-toggle" href="#" id="FastAndSimple.__init__-toggle" onclick="return toggle('FastAndSimple.__init__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">input_file</tt><tt class="py-op">,</tt> <tt class="py-param">minimum_distance</tt><tt class="py-op">,</tt> <tt class="py-param">vstart</tt><tt class="py-op">,</tt> <tt class="py-param">hstart</tt><tt class="py-op">,</tt> <tt class="py-param">layersorpositions</tt><tt class="py-op">=</tt><tt class="py-string">'layers'</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.__init__-expanded"><a name="L10"></a><tt class="py-lineno"> 10</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L11"></a><tt class="py-lineno"> 11</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L12"></a><tt class="py-lineno"> 12</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L13"></a><tt class="py-lineno"> 13</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">=</tt><tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L14"></a><tt class="py-lineno"> 14</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt> <tt class="py-op">=</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">minimum_distance</tt><tt class="py-op">)</tt> </tt>
<a name="L15"></a><tt class="py-lineno"> 15</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">layersorpositions</tt> <tt class="py-op">=</tt> <tt class="py-name">layersorpositions</tt> </tt>
<a name="L16"></a><tt class="py-lineno"> 16</tt>  <tt class="py-line"> </tt>
<a name="L17"></a><tt class="py-lineno"> 17</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">isinstance</tt><tt class="py-op">(</tt><tt class="py-name">input_file</tt><tt class="py-op">,</tt> <tt id="link-2" class="py-name"><a title="pygml.Graph" class="py-name" href="#" onclick="return doclink('link-2', 'Graph', 'link-1');">Graph</a></tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L18"></a><tt class="py-lineno"> 18</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt> <tt class="py-op">=</tt> <tt class="py-name">input_file</tt> </tt>
<a name="L19"></a><tt class="py-lineno"> 19</tt>  <tt class="py-line">        <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L20"></a><tt class="py-lineno"> 20</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt> <tt class="py-op">=</tt> <tt id="link-3" class="py-name"><a title="pygml.Graph" class="py-name" href="#" onclick="return doclink('link-3', 'Graph', 'link-1');">Graph</a></tt><tt class="py-op">(</tt><tt class="py-name">input_file</tt><tt class="py-op">)</tt> </tt>
<a name="L21"></a><tt class="py-lineno"> 21</tt>  <tt class="py-line"> </tt>
<a name="L22"></a><tt class="py-lineno"> 22</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-op">(</tt><tt class="py-name">vstart</tt> <tt class="py-keyword">and</tt> <tt class="py-name">hstart</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L23"></a><tt class="py-lineno"> 23</tt>  <tt class="py-line">            <tt class="py-keyword">return</tt> </tt>
<a name="L24"></a><tt class="py-lineno"> 24</tt>  <tt class="py-line">         </tt>
<a name="L25"></a><tt class="py-lineno"> 25</tt>  <tt class="py-line">        <tt class="py-comment"># Uncomment the two lines below if you want to detect type 2 crossings.</tt> </tt>
<a name="L26"></a><tt class="py-lineno"> 26</tt>  <tt class="py-line">        <tt class="py-comment">#if self.detect_type2():</tt> </tt>
<a name="L27"></a><tt class="py-lineno"> 27</tt>  <tt class="py-line">            <tt class="py-comment">#print "Because of the type 2 crossings, there might be problems."</tt> </tt>
<a name="L28"></a><tt class="py-lineno"> 28</tt>  <tt class="py-line">             </tt>
<a name="L29"></a><tt class="py-lineno"> 29</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Preprocessing..."</tt> </tt>
<a name="L30"></a><tt class="py-lineno"> 30</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-4" class="py-name" targets="Method fastandsimple.FastAndSimple.preprocessing()=fastandsimple.FastAndSimple-class.html#preprocessing"><a title="fastandsimple.FastAndSimple.preprocessing" class="py-name" href="#" onclick="return doclink('link-4', 'preprocessing', 'link-4');">preprocessing</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L31"></a><tt class="py-lineno"> 31</tt>  <tt class="py-line"> </tt>
<a name="L32"></a><tt class="py-lineno"> 32</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-5" class="py-name" targets="Method fastandsimple.FastAndSimple.decide_alignment()=fastandsimple.FastAndSimple-class.html#decide_alignment"><a title="fastandsimple.FastAndSimple.decide_alignment" class="py-name" href="#" onclick="return doclink('link-5', 'decide_alignment', 'link-5');">decide_alignment</a></tt><tt class="py-op">(</tt><tt class="py-name">vstart</tt><tt class="py-op">,</tt> <tt class="py-name">hstart</tt><tt class="py-op">)</tt> <tt class="py-comment"># DOES ALIGNMENT AND COMPACTION</tt> </tt>
<a name="L33"></a><tt class="py-lineno"> 33</tt>  <tt class="py-line">         </tt>
<a name="L34"></a><tt class="py-lineno"> 34</tt>  <tt class="py-line">        <tt class="py-comment"># Uncomment the line below if you want to perform sorting on each individual candidate.        </tt> </tt>
<a name="L35"></a><tt class="py-lineno"> 35</tt>  <tt class="py-line">        <tt class="py-comment">#self.node_sort_heuristic()</tt> </tt>
<a name="L36"></a><tt class="py-lineno"> 36</tt>  <tt class="py-line">         </tt>
<a name="L37"></a><tt class="py-lineno"> 37</tt>  <tt class="py-line">        <tt class="py-comment"># Assign the computed coordinates</tt> </tt>
<a name="L38"></a><tt class="py-lineno"> 38</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> </tt>
<a name="L39"></a><tt class="py-lineno"> 39</tt>  <tt class="py-line">            <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L40"></a><tt class="py-lineno"> 40</tt>  <tt class="py-line">         </tt>
<a name="L41"></a><tt class="py-lineno"> 41</tt>  <tt class="py-line">         </tt>
<a name="L42"></a><tt class="py-lineno"> 42</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Weighted y coordinates..."</tt> </tt>
<a name="L43"></a><tt class="py-lineno"> 43</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-6" class="py-name" targets="Method fastandsimple.FastAndSimple.weighted_y_coordinates()=fastandsimple.FastAndSimple-class.html#weighted_y_coordinates"><a title="fastandsimple.FastAndSimple.weighted_y_coordinates" class="py-name" href="#" onclick="return doclink('link-6', 'weighted_y_coordinates', 'link-6');">weighted_y_coordinates</a></tt><tt class="py-op">(</tt><tt class="py-number">100</tt><tt class="py-op">)</tt> </tt>
<a name="L44"></a><tt class="py-lineno"> 44</tt>  <tt class="py-line">        <tt class="py-comment">#self.adjustments()</tt> </tt>
<a name="L45"></a><tt class="py-lineno"> 45</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-7" class="py-name" targets="Method fastandsimple.FastAndSimple.debug()=fastandsimple.FastAndSimple-class.html#debug"><a title="fastandsimple.FastAndSimple.debug" class="py-name" href="#" onclick="return doclink('link-7', 'debug', 'link-7');">debug</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L46"></a><tt class="py-lineno"> 46</tt>  <tt class="py-line">         </tt>
<a name="L47"></a><tt class="py-lineno"> 47</tt>  <tt class="py-line">        <tt class="py-comment"># Uncomment the line below if you want to straighten the edges in each individual candidate.</tt> </tt>
<a name="L48"></a><tt class="py-lineno"> 48</tt>  <tt class="py-line">        <tt class="py-comment">#self.straighten_bends()</tt> </tt>
<a name="L49"></a><tt class="py-lineno"> 49</tt>  <tt class="py-line">         </tt>
<a name="FastAndSimple.color_blocks"></a><div id="FastAndSimple.color_blocks-def"><a name="L50"></a><tt class="py-lineno"> 50</tt> <a class="py-toggle" href="#" id="FastAndSimple.color_blocks-toggle" onclick="return toggle('FastAndSimple.color_blocks');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#color_blocks">color_blocks</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.color_blocks-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.color_blocks-expanded"><a name="L51"></a><tt class="py-lineno"> 51</tt>  <tt class="py-line">        <tt class="py-docstring">"""Paints the blocks with different colors."""</tt> </tt>
<a name="L52"></a><tt class="py-lineno"> 52</tt>  <tt class="py-line">        <tt class="py-name">colors</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt class="py-string">"#FF0000"</tt><tt class="py-op">,</tt> <tt class="py-string">"#0363FF"</tt><tt class="py-op">,</tt> <tt class="py-string">"#FFF826"</tt><tt class="py-op">,</tt> <tt class="py-string">"#BA0BFF"</tt><tt class="py-op">,</tt> <tt class="py-string">"#FFA42D"</tt><tt class="py-op">,</tt> <tt class="py-string">"#16FF54"</tt><tt class="py-op">,</tt> <tt class="py-string">"#934446"</tt><tt class="py-op">,</tt> <tt class="py-string">"#FF9595"</tt><tt class="py-op">,</tt> <tt class="py-string">"#8860FF"</tt><tt class="py-op">)</tt> </tt>
<a name="L53"></a><tt class="py-lineno"> 53</tt>  <tt class="py-line">        <tt class="py-name">color_index</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L54"></a><tt class="py-lineno"> 54</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L55"></a><tt class="py-lineno"> 55</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">:</tt> </tt>
<a name="L56"></a><tt class="py-lineno"> 56</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">:</tt> <tt class="py-keyword">continue</tt> </tt>
<a name="L57"></a><tt class="py-lineno"> 57</tt>  <tt class="py-line">                <tt class="py-name">w</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L58"></a><tt class="py-lineno"> 58</tt>  <tt class="py-line">                <tt class="py-name">start</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L59"></a><tt class="py-lineno"> 59</tt>  <tt class="py-line">                <tt class="py-keyword">while</tt> <tt class="py-name">v</tt><tt class="py-op">!=</tt><tt class="py-name">w</tt> <tt class="py-keyword">or</tt> <tt class="py-name">start</tt><tt class="py-op">:</tt> </tt>
<a name="L60"></a><tt class="py-lineno"> 60</tt>  <tt class="py-line">                    <tt class="py-name">start</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L61"></a><tt class="py-lineno"> 61</tt>  <tt class="py-line">                    <tt class="py-name">w</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">fill</tt> <tt class="py-op">=</tt> <tt class="py-name">colors</tt><tt class="py-op">[</tt><tt class="py-name">color_index</tt><tt class="py-op">]</tt> </tt>
<a name="L62"></a><tt class="py-lineno"> 62</tt>  <tt class="py-line">                    <tt class="py-name">w</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">w</tt><tt class="py-op">]</tt> </tt>
<a name="L63"></a><tt class="py-lineno"> 63</tt>  <tt class="py-line">            <tt class="py-name">color_index</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt class="py-name">color_index</tt> <tt class="py-op">+</tt> <tt class="py-number">1</tt><tt class="py-op">)</tt> <tt class="py-op">%</tt> <tt class="py-number">9</tt> </tt>
</div><a name="L64"></a><tt class="py-lineno"> 64</tt>  <tt class="py-line">             </tt>
<a name="FastAndSimple.color_classes"></a><div id="FastAndSimple.color_classes-def"><a name="L65"></a><tt class="py-lineno"> 65</tt> <a class="py-toggle" href="#" id="FastAndSimple.color_classes-toggle" onclick="return toggle('FastAndSimple.color_classes');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#color_classes">color_classes</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.color_classes-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.color_classes-expanded"><a name="L66"></a><tt class="py-lineno"> 66</tt>  <tt class="py-line">        <tt class="py-docstring">"""Paints the classes with different colors."""</tt> </tt>
<a name="L67"></a><tt class="py-lineno"> 67</tt>  <tt class="py-line">        <tt class="py-name">colors</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt class="py-string">"#FF0000"</tt><tt class="py-op">,</tt> <tt class="py-string">"#0363FF"</tt><tt class="py-op">,</tt> <tt class="py-string">"#FFF826"</tt><tt class="py-op">,</tt> <tt class="py-string">"#BA0BFF"</tt><tt class="py-op">,</tt> <tt class="py-string">"#FFA42D"</tt><tt class="py-op">,</tt> <tt class="py-string">"#16FF54"</tt><tt class="py-op">,</tt> <tt class="py-string">"#934446"</tt><tt class="py-op">,</tt> <tt class="py-string">"#FF9595"</tt><tt class="py-op">,</tt> <tt class="py-string">"#8860FF"</tt><tt class="py-op">)</tt> </tt>
<a name="L68"></a><tt class="py-lineno"> 68</tt>  <tt class="py-line">        <tt class="py-name">color_index</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L69"></a><tt class="py-lineno"> 69</tt>  <tt class="py-line">        <tt class="py-name">sinks</tt> <tt class="py-op">=</tt> <tt class="py-name">set</tt><tt class="py-op">(</tt><tt class="py-op">[</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L70"></a><tt class="py-lineno"> 70</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L71"></a><tt class="py-lineno"> 71</tt>  <tt class="py-line">            <tt class="py-name">u</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> </tt>
<a name="L72"></a><tt class="py-lineno"> 72</tt>  <tt class="py-line">            <tt class="py-name">sinks</tt><tt class="py-op">.</tt><tt class="py-name">add</tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">)</tt> </tt>
<a name="L73"></a><tt class="py-lineno"> 73</tt>  <tt class="py-line">        <tt class="py-name">sinks</tt> <tt class="py-op">=</tt> <tt class="py-name">list</tt><tt class="py-op">(</tt><tt class="py-name">sinks</tt><tt class="py-op">)</tt> </tt>
<a name="L74"></a><tt class="py-lineno"> 74</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">sink</tt> <tt class="py-keyword">in</tt> <tt class="py-name">sinks</tt><tt class="py-op">:</tt> </tt>
<a name="L75"></a><tt class="py-lineno"> 75</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L76"></a><tt class="py-lineno"> 76</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">sink</tt><tt class="py-op">:</tt> </tt>
<a name="L77"></a><tt class="py-lineno"> 77</tt>  <tt class="py-line">                    <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">fill</tt> <tt class="py-op">=</tt> <tt class="py-name">colors</tt><tt class="py-op">[</tt><tt class="py-name">color_index</tt><tt class="py-op">]</tt> </tt>
<a name="L78"></a><tt class="py-lineno"> 78</tt>  <tt class="py-line">            <tt class="py-name">color_index</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt class="py-name">color_index</tt> <tt class="py-op">+</tt> <tt class="py-number">1</tt><tt class="py-op">)</tt> <tt class="py-op">%</tt> <tt class="py-number">9</tt> </tt>
</div><a name="L79"></a><tt class="py-lineno"> 79</tt>  <tt class="py-line">         </tt>
<a name="FastAndSimple.correct_triple_edge"></a><div id="FastAndSimple.correct_triple_edge-def"><a name="L80"></a><tt class="py-lineno"> 80</tt> <a class="py-toggle" href="#" id="FastAndSimple.correct_triple_edge-toggle" onclick="return toggle('FastAndSimple.correct_triple_edge');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#correct_triple_edge">correct_triple_edge</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.correct_triple_edge-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.correct_triple_edge-expanded"><a name="L81"></a><tt class="py-lineno"> 81</tt>  <tt class="py-line">        <tt class="py-docstring">"""Corrects sloping inner segment of 3 segmented edges."""</tt> </tt>
<a name="L82"></a><tt class="py-lineno"> 82</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Correcting triple edges..."</tt> </tt>
<a name="L83"></a><tt class="py-lineno"> 83</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">u</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">virtual_nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L84"></a><tt class="py-lineno"> 84</tt>  <tt class="py-line">            <tt class="py-name">upper_real</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt id="link-8" class="py-name" targets="Method pygml.Node.upper_neighbors()=pygml.Node-class.html#upper_neighbors"><a title="pygml.Node.upper_neighbors" class="py-name" href="#" onclick="return doclink('link-8', 'upper_neighbors', 'link-8');">upper_neighbors</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L85"></a><tt class="py-lineno"> 85</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">upper_real</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> <tt class="py-keyword">continue</tt> </tt>
<a name="L86"></a><tt class="py-lineno"> 86</tt>  <tt class="py-line"> </tt>
<a name="L87"></a><tt class="py-lineno"> 87</tt>  <tt class="py-line">            <tt class="py-name">v</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt id="link-9" class="py-name" targets="Method pygml.Node.lower_neighbors()=pygml.Node-class.html#lower_neighbors"><a title="pygml.Node.lower_neighbors" class="py-name" href="#" onclick="return doclink('link-9', 'lower_neighbors', 'link-9');">lower_neighbors</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L88"></a><tt class="py-lineno"> 88</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> <tt class="py-keyword">continue</tt> </tt>
<a name="L89"></a><tt class="py-lineno"> 89</tt>  <tt class="py-line"> </tt>
<a name="L90"></a><tt class="py-lineno"> 90</tt>  <tt class="py-line">            <tt class="py-name">lower_real</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt id="link-10" class="py-name"><a title="pygml.Node.lower_neighbors" class="py-name" href="#" onclick="return doclink('link-10', 'lower_neighbors', 'link-9');">lower_neighbors</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L91"></a><tt class="py-lineno"> 91</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">lower_real</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> <tt class="py-keyword">continue</tt> </tt>
<a name="L92"></a><tt class="py-lineno"> 92</tt>  <tt class="py-line">            <tt class="py-comment">#print "Found a triple edge"</tt> </tt>
<a name="L93"></a><tt class="py-lineno"> 93</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> <tt class="py-keyword">continue</tt> </tt>
<a name="L94"></a><tt class="py-lineno"> 94</tt>  <tt class="py-line">            <tt class="py-comment">#print "that needs to be corrected."</tt> </tt>
<a name="L95"></a><tt class="py-lineno"> 95</tt>  <tt class="py-line"> </tt>
<a name="L96"></a><tt class="py-lineno"> 96</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">upper_real</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">+</tt> <tt class="py-name">lower_real</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">+</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> </tt>
<a name="L97"></a><tt class="py-lineno"> 97</tt>  <tt class="py-line">                <tt class="py-comment"># Means that real nodes are on the right of the dummies.</tt> </tt>
<a name="L98"></a><tt class="py-lineno"> 98</tt>  <tt class="py-line">                <tt class="py-comment"># So we should shift the dummy on the left to right.</tt> </tt>
<a name="L99"></a><tt class="py-lineno"> 99</tt>  <tt class="py-line">                <tt class="py-comment">#print "Reals are on the right."</tt> </tt>
<a name="L100"></a><tt class="py-lineno">100</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> </tt>
<a name="L101"></a><tt class="py-lineno">101</tt>  <tt class="py-line">                    <tt class="py-comment">#print "U is on the left of v"</tt> </tt>
<a name="L102"></a><tt class="py-lineno">102</tt>  <tt class="py-line">                    <tt class="py-comment"># If u is on the left of v,</tt> </tt>
<a name="L103"></a><tt class="py-lineno">103</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-11" class="py-name" targets="Method fastandsimple.FastAndSimple.feasible()=fastandsimple.FastAndSimple-class.html#feasible"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-11', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L104"></a><tt class="py-lineno">104</tt>  <tt class="py-line">                        <tt class="py-comment">#print "It is feasible to put it right."</tt> </tt>
<a name="L105"></a><tt class="py-lineno">105</tt>  <tt class="py-line">                        <tt class="py-comment"># If no other node exists there,</tt> </tt>
<a name="L106"></a><tt class="py-lineno">106</tt>  <tt class="py-line">                        <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
</div><a name="FastAndSimple.feasible"></a><div id="FastAndSimple.feasible-def"><a name="L107"></a><tt class="py-lineno">107</tt> <a class="py-toggle" href="#" id="FastAndSimple.feasible-toggle" onclick="return toggle('FastAndSimple.feasible');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#feasible">feasible</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">x</tt><tt class="py-op">,</tt> <tt class="py-param">layer</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.feasible-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.feasible-expanded"><a name="L108"></a><tt class="py-lineno">108</tt>  <tt class="py-line">        <tt class="py-docstring">"""Returns if any node exists on the given x coordinate and layer."""</tt> </tt>
<a name="L109"></a><tt class="py-lineno">109</tt>  <tt class="py-line">        <tt class="py-name">get_x</tt> <tt class="py-op">=</tt> <tt class="py-keyword">lambda</tt> <tt class="py-name">a</tt><tt class="py-op">:</tt> <tt class="py-name">a</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L110"></a><tt class="py-lineno">110</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">x</tt> <tt class="py-keyword">in</tt> <tt class="py-op">(</tt> <tt class="py-name">get_x</tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">)</tt> <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> <tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L111"></a><tt class="py-lineno">111</tt>  <tt class="py-line">            <tt class="py-keyword">return</tt> <tt class="py-name">False</tt> </tt>
<a name="L112"></a><tt class="py-lineno">112</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">True</tt> </tt>
</div><a name="L113"></a><tt class="py-lineno">113</tt>  <tt class="py-line"> </tt>
<a name="FastAndSimple.paint_type1"></a><div id="FastAndSimple.paint_type1-def"><a name="L114"></a><tt class="py-lineno">114</tt> <a class="py-toggle" href="#" id="FastAndSimple.paint_type1-toggle" onclick="return toggle('FastAndSimple.paint_type1');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#paint_type1">paint_type1</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.paint_type1-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.paint_type1-expanded"><a name="L115"></a><tt class="py-lineno">115</tt>  <tt class="py-line">        <tt class="py-docstring">"""Paints the edges that are marked by preprocessing step with red"""</tt> </tt>
<a name="L116"></a><tt class="py-lineno">116</tt>  <tt class="py-line">        <tt class="py-comment"># Mark type 1 crossing edges with red.</tt> </tt>
<a name="L117"></a><tt class="py-lineno">117</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">edge</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">edges</tt><tt class="py-op">:</tt> </tt>
<a name="L118"></a><tt class="py-lineno">118</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">marked</tt><tt class="py-op">:</tt> </tt>
<a name="L119"></a><tt class="py-lineno">119</tt>  <tt class="py-line">                <tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">fill</tt> <tt class="py-op">=</tt> <tt class="py-string">"#FF0000"</tt> </tt>
</div><a name="L120"></a><tt class="py-lineno">120</tt>  <tt class="py-line">         </tt>
<a name="FastAndSimple.decide_alignment"></a><div id="FastAndSimple.decide_alignment-def"><a name="L121"></a><tt class="py-lineno">121</tt> <a class="py-toggle" href="#" id="FastAndSimple.decide_alignment-toggle" onclick="return toggle('FastAndSimple.decide_alignment');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#decide_alignment">decide_alignment</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">vstart</tt><tt class="py-op">,</tt> <tt class="py-param">hstart</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.decide_alignment-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.decide_alignment-expanded"><a name="L122"></a><tt class="py-lineno">122</tt>  <tt class="py-line">        <tt class="py-docstring">"""Decides which methods shall be used according to</tt> </tt>
<a name="L123"></a><tt class="py-lineno">123</tt>  <tt class="py-line"><tt class="py-docstring">        the direction parameters."""</tt> </tt>
<a name="L124"></a><tt class="py-lineno">124</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">vstart</tt> <tt class="py-op">==</tt> <tt class="py-string">"up"</tt><tt class="py-op">:</tt> </tt>
<a name="L125"></a><tt class="py-lineno">125</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">hstart</tt> <tt class="py-op">==</tt> <tt class="py-string">"left"</tt><tt class="py-op">:</tt> </tt>
<a name="L126"></a><tt class="py-lineno">126</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-12" class="py-name" targets="Method fastandsimple.FastAndSimple.vertical_alignment_up_left()=fastandsimple.FastAndSimple-class.html#vertical_alignment_up_left"><a title="fastandsimple.FastAndSimple.vertical_alignment_up_left" class="py-name" href="#" onclick="return doclink('link-12', 'vertical_alignment_up_left', 'link-12');">vertical_alignment_up_left</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L127"></a><tt class="py-lineno">127</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-13" class="py-name" targets="Method fastandsimple.FastAndSimple.horizontal_compaction_up_left()=fastandsimple.FastAndSimple-class.html#horizontal_compaction_up_left"><a title="fastandsimple.FastAndSimple.horizontal_compaction_up_left" class="py-name" href="#" onclick="return doclink('link-13', 'horizontal_compaction_up_left', 'link-13');">horizontal_compaction_up_left</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L128"></a><tt class="py-lineno">128</tt>  <tt class="py-line">            <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L129"></a><tt class="py-lineno">129</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-14" class="py-name" targets="Method fastandsimple.FastAndSimple.vertical_alignment_up_right()=fastandsimple.FastAndSimple-class.html#vertical_alignment_up_right"><a title="fastandsimple.FastAndSimple.vertical_alignment_up_right" class="py-name" href="#" onclick="return doclink('link-14', 'vertical_alignment_up_right', 'link-14');">vertical_alignment_up_right</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L130"></a><tt class="py-lineno">130</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-15" class="py-name" targets="Method fastandsimple.FastAndSimple.horizontal_compaction_up_right()=fastandsimple.FastAndSimple-class.html#horizontal_compaction_up_right"><a title="fastandsimple.FastAndSimple.horizontal_compaction_up_right" class="py-name" href="#" onclick="return doclink('link-15', 'horizontal_compaction_up_right', 'link-15');">horizontal_compaction_up_right</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L131"></a><tt class="py-lineno">131</tt>  <tt class="py-line">        <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L132"></a><tt class="py-lineno">132</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">hstart</tt> <tt class="py-op">==</tt> <tt class="py-string">"left"</tt><tt class="py-op">:</tt> </tt>
<a name="L133"></a><tt class="py-lineno">133</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-16" class="py-name" targets="Method fastandsimple.FastAndSimple.vertical_alignment_down_left()=fastandsimple.FastAndSimple-class.html#vertical_alignment_down_left"><a title="fastandsimple.FastAndSimple.vertical_alignment_down_left" class="py-name" href="#" onclick="return doclink('link-16', 'vertical_alignment_down_left', 'link-16');">vertical_alignment_down_left</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L134"></a><tt class="py-lineno">134</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-17" class="py-name" targets="Method fastandsimple.FastAndSimple.horizontal_compaction_down_left()=fastandsimple.FastAndSimple-class.html#horizontal_compaction_down_left"><a title="fastandsimple.FastAndSimple.horizontal_compaction_down_left" class="py-name" href="#" onclick="return doclink('link-17', 'horizontal_compaction_down_left', 'link-17');">horizontal_compaction_down_left</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L135"></a><tt class="py-lineno">135</tt>  <tt class="py-line">            <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L136"></a><tt class="py-lineno">136</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-18" class="py-name" targets="Method fastandsimple.FastAndSimple.vertical_alignment_down_right()=fastandsimple.FastAndSimple-class.html#vertical_alignment_down_right"><a title="fastandsimple.FastAndSimple.vertical_alignment_down_right" class="py-name" href="#" onclick="return doclink('link-18', 'vertical_alignment_down_right', 'link-18');">vertical_alignment_down_right</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L137"></a><tt class="py-lineno">137</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-19" class="py-name" targets="Method fastandsimple.FastAndSimple.horizontal_compaction_down_right()=fastandsimple.FastAndSimple-class.html#horizontal_compaction_down_right"><a title="fastandsimple.FastAndSimple.horizontal_compaction_down_right" class="py-name" href="#" onclick="return doclink('link-19', 'horizontal_compaction_down_right', 'link-19');">horizontal_compaction_down_right</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L138"></a><tt class="py-lineno">138</tt>  <tt class="py-line">         </tt>
<a name="FastAndSimple.detect_type2"></a><div id="FastAndSimple.detect_type2-def"><a name="L139"></a><tt class="py-lineno">139</tt> <a class="py-toggle" href="#" id="FastAndSimple.detect_type2-toggle" onclick="return toggle('FastAndSimple.detect_type2');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#detect_type2">detect_type2</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.detect_type2-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.detect_type2-expanded"><a name="L140"></a><tt class="py-lineno">140</tt>  <tt class="py-line">        <tt class="py-docstring">"""Detects type 2 crossings."""</tt> </tt>
<a name="L141"></a><tt class="py-lineno">141</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Searching for type 2 crossings..."</tt><tt class="py-string">""</tt> </tt>
<a name="L142"></a><tt class="py-lineno">142</tt>  <tt class="py-line">        <tt class="py-name">detected</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L143"></a><tt class="py-lineno">143</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L144"></a><tt class="py-lineno">144</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">u</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L145"></a><tt class="py-lineno">145</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> </tt>
<a name="L146"></a><tt class="py-lineno">146</tt>  <tt class="py-line">                    <tt class="py-name">uoe</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">outgoing_edges</tt> </tt>
<a name="L147"></a><tt class="py-lineno">147</tt>  <tt class="py-line">                    <tt class="py-keyword">for</tt> <tt class="py-name">out_edge</tt> <tt class="py-keyword">in</tt> <tt class="py-name">uoe</tt><tt class="py-op">:</tt> </tt>
<a name="L148"></a><tt class="py-lineno">148</tt>  <tt class="py-line">                        <tt class="py-keyword">if</tt> <tt class="py-name">out_edge</tt><tt class="py-op">.</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> </tt>
<a name="L149"></a><tt class="py-lineno">149</tt>  <tt class="py-line">                            <tt class="py-keyword">for</tt> <tt class="py-name">i</tt> <tt class="py-keyword">in</tt> <tt class="py-name">range</tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> <tt class="py-op">+</tt> <tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L150"></a><tt class="py-lineno">150</tt>  <tt class="py-line">                                <tt class="py-name">v</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-name">i</tt><tt class="py-op">]</tt> </tt>
<a name="L151"></a><tt class="py-lineno">151</tt>  <tt class="py-line">                                <tt class="py-keyword">for</tt> <tt class="py-name">edge</tt> <tt class="py-keyword">in</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">outgoing_edges</tt><tt class="py-op">:</tt> </tt>
<a name="L152"></a><tt class="py-lineno">152</tt>  <tt class="py-line">                                    <tt class="py-keyword">if</tt> <tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt> <tt class="py-keyword">and</tt> <tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt> <tt class="py-keyword">and</tt> <tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">out_edge</tt><tt class="py-op">.</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">position</tt><tt class="py-op">:</tt> </tt>
<a name="L153"></a><tt class="py-lineno">153</tt>  <tt class="py-line">                                        <tt class="py-keyword">print</tt> <tt class="py-string">"(%d, %d) and (%d, %d) are type 2 crossing."</tt> <tt class="py-op">%</tt> <tt class="py-op">(</tt><tt class="py-name">out_edge</tt><tt class="py-op">.</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt> <tt class="py-name">out_edge</tt><tt class="py-op">.</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt> <tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt> <tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">)</tt> </tt>
<a name="L154"></a><tt class="py-lineno">154</tt>  <tt class="py-line">                                        <tt class="py-name">detected</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L155"></a><tt class="py-lineno">155</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">detected</tt> </tt>
</div><a name="L156"></a><tt class="py-lineno">156</tt>  <tt class="py-line">             </tt>
<a name="FastAndSimple.weighted_y_coordinates"></a><div id="FastAndSimple.weighted_y_coordinates-def"><a name="L157"></a><tt class="py-lineno">157</tt> <a class="py-toggle" href="#" id="FastAndSimple.weighted_y_coordinates-toggle" onclick="return toggle('FastAndSimple.weighted_y_coordinates');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#weighted_y_coordinates">weighted_y_coordinates</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">base_height</tt><tt class="py-op">=</tt><tt class="py-number">100.0</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.weighted_y_coordinates-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.weighted_y_coordinates-expanded"><a name="L158"></a><tt class="py-lineno">158</tt>  <tt class="py-line">        <tt class="py-docstring">"""Assigns weighted y coordinates to the nodes according to</tt> </tt>
<a name="L159"></a><tt class="py-lineno">159</tt>  <tt class="py-line"><tt class="py-docstring">        their cumulative edge weights."""</tt> </tt>
<a name="L160"></a><tt class="py-lineno">160</tt>  <tt class="py-line">         </tt>
<a name="L161"></a><tt class="py-lineno">161</tt>  <tt class="py-line">        <tt class="py-name">total_sum</tt> <tt class="py-op">=</tt> <tt class="py-number">0.0</tt> </tt>
<a name="L162"></a><tt class="py-lineno">162</tt>  <tt class="py-line">        <tt class="py-name">layer_sums</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L163"></a><tt class="py-lineno">163</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L164"></a><tt class="py-lineno">164</tt>  <tt class="py-line">            <tt class="py-name">layer_sum</tt> <tt class="py-op">=</tt> <tt class="py-number">0.0</tt> </tt>
<a name="L165"></a><tt class="py-lineno">165</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L166"></a><tt class="py-lineno">166</tt>  <tt class="py-line">                <tt class="py-name">edges</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">outgoing_edges</tt> </tt>
<a name="L167"></a><tt class="py-lineno">167</tt>  <tt class="py-line">                <tt class="py-keyword">for</tt> <tt class="py-name">edge</tt> <tt class="py-keyword">in</tt> <tt class="py-name">edges</tt><tt class="py-op">:</tt> </tt>
<a name="L168"></a><tt class="py-lineno">168</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-string">"parameter"</tt> <tt class="py-keyword">in</tt> <tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">__dict__</tt><tt class="py-op">:</tt> </tt>
<a name="L169"></a><tt class="py-lineno">169</tt>  <tt class="py-line">                        <tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">parameter</tt> <tt class="py-op">=</tt> <tt class="py-number">2.0</tt> </tt>
<a name="L170"></a><tt class="py-lineno">170</tt>  <tt class="py-line">                    <tt class="py-name">layer_sum</tt> <tt class="py-op">+=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">parameter</tt><tt class="py-op">)</tt> </tt>
<a name="L171"></a><tt class="py-lineno">171</tt>  <tt class="py-line">                     </tt>
<a name="L172"></a><tt class="py-lineno">172</tt>  <tt class="py-line">                         </tt>
<a name="L173"></a><tt class="py-lineno">173</tt>  <tt class="py-line">            <tt class="py-name">layer_sums</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">layer_sum</tt> </tt>
<a name="L174"></a><tt class="py-lineno">174</tt>  <tt class="py-line">            <tt class="py-name">total_sum</tt> <tt class="py-op">+=</tt> <tt class="py-name">layer_sum</tt> </tt>
<a name="L175"></a><tt class="py-lineno">175</tt>  <tt class="py-line">             </tt>
<a name="L176"></a><tt class="py-lineno">176</tt>  <tt class="py-line">        <tt class="py-name">last_y</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L177"></a><tt class="py-lineno">177</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L178"></a><tt class="py-lineno">178</tt>  <tt class="py-line">            <tt class="py-name">layer_sums</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">/=</tt><tt class="py-name">total_sum</tt> </tt>
<a name="L179"></a><tt class="py-lineno">179</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">layer</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L180"></a><tt class="py-lineno">180</tt>  <tt class="py-line">                <tt class="py-name">last_y</tt> <tt class="py-op">+=</tt> <tt class="py-name">base_height</tt><tt class="py-op">*</tt><tt class="py-number">1.5</tt> <tt class="py-op">+</tt> <tt class="py-name">base_height</tt> <tt class="py-op">*</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">)</tt><tt class="py-op">*</tt> <tt class="py-name">layer_sums</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> </tt>
<a name="L181"></a><tt class="py-lineno">181</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt>                 </tt>
<a name="L182"></a><tt class="py-lineno">182</tt>  <tt class="py-line">                <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">y</tt> <tt class="py-op">=</tt> <tt class="py-name">last_y</tt> </tt>
</div><a name="L183"></a><tt class="py-lineno">183</tt>  <tt class="py-line">             </tt>
<a name="FastAndSimple.post_adjustments"></a><div id="FastAndSimple.post_adjustments-def"><a name="L184"></a><tt class="py-lineno">184</tt> <a class="py-toggle" href="#" id="FastAndSimple.post_adjustments-toggle" onclick="return toggle('FastAndSimple.post_adjustments');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#post_adjustments">post_adjustments</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.post_adjustments-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.post_adjustments-expanded"><a name="L185"></a><tt class="py-lineno">185</tt>  <tt class="py-line">        <tt class="py-docstring">"""Some post adjustments after balancing."""</tt> </tt>
<a name="L186"></a><tt class="py-lineno">186</tt>  <tt class="py-line">        <tt class="py-comment"># Shifts the overlapping nodes by half of their widths.</tt> </tt>
<a name="L187"></a><tt class="py-lineno">187</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Post adjustments..."</tt> </tt>
<a name="L188"></a><tt class="py-lineno">188</tt>  <tt class="py-line">         </tt>
<a name="L189"></a><tt class="py-lineno">189</tt>  <tt class="py-line">        <tt class="py-name">layer_overlaps</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-number">0</tt><tt class="py-op">:</tt> <tt class="py-number">1</tt><tt class="py-op">}</tt> </tt>
<a name="L190"></a><tt class="py-lineno">190</tt>  <tt class="py-line">        <tt class="py-name">tour</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L191"></a><tt class="py-lineno">191</tt>  <tt class="py-line">        <tt class="py-keyword">while</tt> <tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">layer_overlaps</tt><tt class="py-op">.</tt><tt class="py-name">values</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> <tt class="py-op">!=</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L192"></a><tt class="py-lineno">192</tt>  <tt class="py-line">            <tt class="py-keyword">print</tt> <tt class="py-string">"New tour"</tt> </tt>
<a name="L193"></a><tt class="py-lineno">193</tt>  <tt class="py-line">            <tt class="py-name">tour</tt> <tt class="py-op">+=</tt> <tt class="py-number">1</tt> </tt>
<a name="L194"></a><tt class="py-lineno">194</tt>  <tt class="py-line">             </tt>
<a name="L195"></a><tt class="py-lineno">195</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L196"></a><tt class="py-lineno">196</tt>  <tt class="py-line">                <tt class="py-name">layer_overlaps</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L197"></a><tt class="py-lineno">197</tt>  <tt class="py-line">                <tt class="py-keyword">for</tt> <tt class="py-name">u</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L198"></a><tt class="py-lineno">198</tt>  <tt class="py-line">                    <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L199"></a><tt class="py-lineno">199</tt>  <tt class="py-line">                        <tt class="py-keyword">if</tt> <tt class="py-name">u</tt><tt class="py-op">!=</tt><tt class="py-name">v</tt> <tt class="py-keyword">and</tt> <tt class="py-name">abs</tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt> <tt class="py-op">&lt;</tt> <tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">w</tt> <tt class="py-op">+</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">w</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-number">2</tt> <tt class="py-op">:</tt> </tt>
<a name="L200"></a><tt class="py-lineno">200</tt>  <tt class="py-line">                            <tt class="py-keyword">if</tt> <tt class="py-name">tour</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">15</tt><tt class="py-op">:</tt> </tt>
<a name="L201"></a><tt class="py-lineno">201</tt>  <tt class="py-line">                                <tt class="py-keyword">print</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt><tt class="py-string">":"</tt><tt class="py-op">,</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt><tt class="py-string">"---"</tt><tt class="py-op">,</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt><tt class="py-string">":"</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L202"></a><tt class="py-lineno">202</tt>  <tt class="py-line">                                <tt class="py-keyword">print</tt> <tt class="py-string">"-------------------------------------------------"</tt><tt class="py-op">*</tt><tt class="py-number">10</tt> </tt>
<a name="L203"></a><tt class="py-lineno">203</tt>  <tt class="py-line">                                <tt class="py-keyword">return</tt> </tt>
<a name="L204"></a><tt class="py-lineno">204</tt>  <tt class="py-line">                             </tt>
<a name="L205"></a><tt class="py-lineno">205</tt>  <tt class="py-line">                             </tt>
<a name="L206"></a><tt class="py-lineno">206</tt>  <tt class="py-line">                            <tt class="py-keyword">print</tt> <tt class="py-string">"Adjusting %d and %d"</tt> <tt class="py-op">%</tt> <tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">)</tt> </tt>
<a name="L207"></a><tt class="py-lineno">207</tt>  <tt class="py-line">                            <tt class="py-keyword">if</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">position</tt><tt class="py-op">:</tt> </tt>
<a name="L208"></a><tt class="py-lineno">208</tt>  <tt class="py-line">                                <tt class="py-keyword">if</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">pred</tt><tt class="py-op">:</tt> </tt>
<a name="L209"></a><tt class="py-lineno">209</tt>  <tt class="py-line">                                    <tt class="py-name">prev_x</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">pred</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L210"></a><tt class="py-lineno">210</tt>  <tt class="py-line">                                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L211"></a><tt class="py-lineno">211</tt>  <tt class="py-line">                                    <tt class="py-name">prev_x</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt> </tt>
<a name="L212"></a><tt class="py-lineno">212</tt>  <tt class="py-line">                                <tt class="py-keyword">if</tt> <tt class="py-name">prev_x</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt> <tt class="py-keyword">not</tt> <tt class="py-keyword">in</tt> <tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L213"></a><tt class="py-lineno">213</tt>  <tt class="py-line">                                    <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">prev_x</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt> </tt>
<a name="L214"></a><tt class="py-lineno">214</tt>  <tt class="py-line">                                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L215"></a><tt class="py-lineno">215</tt>  <tt class="py-line">                                    <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">prev_x</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt><tt class="py-op">/</tt><tt class="py-number">2</tt> </tt>
<a name="L216"></a><tt class="py-lineno">216</tt>  <tt class="py-line">                            <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L217"></a><tt class="py-lineno">217</tt>  <tt class="py-line">                                <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">pred</tt><tt class="py-op">:</tt> </tt>
<a name="L218"></a><tt class="py-lineno">218</tt>  <tt class="py-line">                                    <tt class="py-name">prev_x</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">pred</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L219"></a><tt class="py-lineno">219</tt>  <tt class="py-line">                                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L220"></a><tt class="py-lineno">220</tt>  <tt class="py-line">                                    <tt class="py-name">prev_x</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt> </tt>
<a name="L221"></a><tt class="py-lineno">221</tt>  <tt class="py-line">                                     </tt>
<a name="L222"></a><tt class="py-lineno">222</tt>  <tt class="py-line">                                <tt class="py-keyword">if</tt> <tt class="py-name">prev_x</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt> <tt class="py-keyword">not</tt> <tt class="py-keyword">in</tt> <tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L223"></a><tt class="py-lineno">223</tt>  <tt class="py-line">                                    <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">prev_x</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt> </tt>
<a name="L224"></a><tt class="py-lineno">224</tt>  <tt class="py-line">                                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L225"></a><tt class="py-lineno">225</tt>  <tt class="py-line">                                    <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">prev_x</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt><tt class="py-op">/</tt><tt class="py-number">2</tt> </tt>
<a name="L226"></a><tt class="py-lineno">226</tt>  <tt class="py-line">                            <tt class="py-name">layer_overlaps</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
</div><a name="FastAndSimple.order_changes"></a><div id="FastAndSimple.order_changes-def"><a name="L227"></a><tt class="py-lineno">227</tt> <a class="py-toggle" href="#" id="FastAndSimple.order_changes-toggle" onclick="return toggle('FastAndSimple.order_changes');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#order_changes">order_changes</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">node</tt><tt class="py-op">,</tt> <tt class="py-param">target_x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.order_changes-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.order_changes-expanded"><a name="L228"></a><tt class="py-lineno">228</tt>  <tt class="py-line">        <tt class="py-docstring">"""Checks if the order changed when the node is moved to the target_x."""</tt> </tt>
<a name="L229"></a><tt class="py-lineno">229</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">target_x</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> </tt>
<a name="L230"></a><tt class="py-lineno">230</tt>  <tt class="py-line">            <tt class="py-comment"># If we are moving the node to the right,</tt> </tt>
<a name="L231"></a><tt class="py-lineno">231</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt><tt class="py-op">:</tt> <tt class="py-keyword">return</tt> <tt class="py-name">False</tt> </tt>
<a name="L232"></a><tt class="py-lineno">232</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">&lt;=</tt> <tt class="py-name">target_x</tt><tt class="py-op">:</tt> </tt>
<a name="L233"></a><tt class="py-lineno">233</tt>  <tt class="py-line">                <tt class="py-comment"># If we passed the successor node, the order has changed.</tt> </tt>
<a name="L234"></a><tt class="py-lineno">234</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">True</tt> </tt>
<a name="L235"></a><tt class="py-lineno">235</tt>  <tt class="py-line">            <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L236"></a><tt class="py-lineno">236</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">False</tt> </tt>
<a name="L237"></a><tt class="py-lineno">237</tt>  <tt class="py-line">        <tt class="py-keyword">elif</tt> <tt class="py-name">target_x</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> </tt>
<a name="L238"></a><tt class="py-lineno">238</tt>  <tt class="py-line">            <tt class="py-comment"># If we are moving the node to the left,</tt> </tt>
<a name="L239"></a><tt class="py-lineno">239</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">pred</tt><tt class="py-op">:</tt> <tt class="py-keyword">return</tt> <tt class="py-name">False</tt> </tt>
<a name="L240"></a><tt class="py-lineno">240</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">pred</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">&gt;=</tt> <tt class="py-name">target_x</tt><tt class="py-op">:</tt> </tt>
<a name="L241"></a><tt class="py-lineno">241</tt>  <tt class="py-line">                <tt class="py-comment"># If we passed the predecessor node, the order has changed.</tt> </tt>
<a name="L242"></a><tt class="py-lineno">242</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">True</tt> </tt>
<a name="L243"></a><tt class="py-lineno">243</tt>  <tt class="py-line">            <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L244"></a><tt class="py-lineno">244</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">False</tt> </tt>
<a name="L245"></a><tt class="py-lineno">245</tt>  <tt class="py-line">        <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L246"></a><tt class="py-lineno">246</tt>  <tt class="py-line">            <tt class="py-comment"># If same coordinate given, order doesn't change.</tt> </tt>
<a name="L247"></a><tt class="py-lineno">247</tt>  <tt class="py-line">            <tt class="py-keyword">return</tt> <tt class="py-name">False</tt> </tt>
</div><a name="L248"></a><tt class="py-lineno">248</tt>  <tt class="py-line">             </tt>
<a name="FastAndSimple.center_nodes"></a><div id="FastAndSimple.center_nodes-def"><a name="L249"></a><tt class="py-lineno">249</tt> <a class="py-toggle" href="#" id="FastAndSimple.center_nodes-toggle" onclick="return toggle('FastAndSimple.center_nodes');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#center_nodes">center_nodes</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.center_nodes-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.center_nodes-expanded"><a name="L250"></a><tt class="py-lineno">250</tt>  <tt class="py-line">        <tt class="py-docstring">"Centering nodes..."</tt> </tt>
<a name="L251"></a><tt class="py-lineno">251</tt>  <tt class="py-line">        <tt class="py-name">n</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">.</tt><tt class="py-name">keys</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L252"></a><tt class="py-lineno">252</tt>  <tt class="py-line">        <tt class="py-name">first_line</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L253"></a><tt class="py-lineno">253</tt>  <tt class="py-line">        <tt class="py-name">last_line</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">n</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> </tt>
<a name="L254"></a><tt class="py-lineno">254</tt>  <tt class="py-line">         </tt>
<a name="L255"></a><tt class="py-lineno">255</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">first_line</tt><tt class="py-op">)</tt> <tt class="py-op">&lt;</tt> <tt class="py-number">3</tt><tt class="py-op">:</tt> </tt>
<a name="L256"></a><tt class="py-lineno">256</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">first_line</tt><tt class="py-op">:</tt> </tt>
<a name="L257"></a><tt class="py-lineno">257</tt>  <tt class="py-line">                <tt class="py-name">oe</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">outgoing_edges</tt> </tt>
<a name="L258"></a><tt class="py-lineno">258</tt>  <tt class="py-line">                <tt class="py-name">xs</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt> <tt class="py-name">e</tt><tt class="py-op">.</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-keyword">for</tt> <tt class="py-name">e</tt> <tt class="py-keyword">in</tt> <tt class="py-name">oe</tt> <tt class="py-op">)</tt> </tt>
<a name="L259"></a><tt class="py-lineno">259</tt>  <tt class="py-line">                <tt class="py-name">new_coordinate</tt> <tt class="py-op">=</tt> <tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">xs</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">oe</tt><tt class="py-op">)</tt> </tt>
<a name="L260"></a><tt class="py-lineno">260</tt>  <tt class="py-line">                <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">new_coordinate</tt> </tt>
<a name="L261"></a><tt class="py-lineno">261</tt>  <tt class="py-line">                 </tt>
<a name="L262"></a><tt class="py-lineno">262</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">last_line</tt><tt class="py-op">)</tt> <tt class="py-op">&lt;</tt> <tt class="py-number">3</tt><tt class="py-op">:</tt> </tt>
<a name="L263"></a><tt class="py-lineno">263</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">last_line</tt><tt class="py-op">:</tt> </tt>
<a name="L264"></a><tt class="py-lineno">264</tt>  <tt class="py-line">                <tt class="py-name">oe</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">incoming_edges</tt> </tt>
<a name="L265"></a><tt class="py-lineno">265</tt>  <tt class="py-line">                <tt class="py-name">xs</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt> <tt class="py-name">e</tt><tt class="py-op">.</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-keyword">for</tt> <tt class="py-name">e</tt> <tt class="py-keyword">in</tt> <tt class="py-name">oe</tt> <tt class="py-op">)</tt> </tt>
<a name="L266"></a><tt class="py-lineno">266</tt>  <tt class="py-line">                <tt class="py-name">new_coordinate</tt> <tt class="py-op">=</tt> <tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">xs</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">oe</tt><tt class="py-op">)</tt> </tt>
<a name="L267"></a><tt class="py-lineno">267</tt>  <tt class="py-line">                <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">new_coordinate</tt> </tt>
</div><a name="L268"></a><tt class="py-lineno">268</tt>  <tt class="py-line">                 </tt>
<a name="L269"></a><tt class="py-lineno">269</tt>  <tt class="py-line">                         </tt>
<a name="L270"></a><tt class="py-lineno">270</tt>  <tt class="py-line">                 </tt>
<a name="FastAndSimple.straighten_bends"></a><div id="FastAndSimple.straighten_bends-def"><a name="L271"></a><tt class="py-lineno">271</tt> <a class="py-toggle" href="#" id="FastAndSimple.straighten_bends-toggle" onclick="return toggle('FastAndSimple.straighten_bends');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#straighten_bends">straighten_bends</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.straighten_bends-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.straighten_bends-expanded"><a name="L272"></a><tt class="py-lineno">272</tt>  <tt class="py-line">        <tt class="py-docstring">"""Straightens the edge bends."""</tt> </tt>
<a name="L273"></a><tt class="py-lineno">273</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Straightening bends."</tt>                             </tt>
<a name="L274"></a><tt class="py-lineno">274</tt>  <tt class="py-line">         </tt>
<a name="L275"></a><tt class="py-lineno">275</tt>  <tt class="py-line">        <tt class="py-comment"># Start from the middle.</tt> </tt>
<a name="L276"></a><tt class="py-lineno">276</tt>  <tt class="py-line">         </tt>
<a name="L277"></a><tt class="py-lineno">277</tt>  <tt class="py-line">        <tt class="py-name">l</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">)</tt> </tt>
<a name="L278"></a><tt class="py-lineno">278</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">l</tt><tt class="py-op">%</tt><tt class="py-number">2</tt> <tt class="py-op">==</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L279"></a><tt class="py-lineno">279</tt>  <tt class="py-line">            <tt class="py-name">b</tt> <tt class="py-op">=</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">l</tt><tt class="py-op">/</tt><tt class="py-number">2</tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt> </tt>
<a name="L280"></a><tt class="py-lineno">280</tt>  <tt class="py-line">        <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L281"></a><tt class="py-lineno">281</tt>  <tt class="py-line">            <tt class="py-name">b</tt> <tt class="py-op">=</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">floor</tt><tt class="py-op">(</tt><tt class="py-name">l</tt><tt class="py-op">/</tt><tt class="py-number">2</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L282"></a><tt class="py-lineno">282</tt>  <tt class="py-line">             </tt>
<a name="L283"></a><tt class="py-lineno">283</tt>  <tt class="py-line">        <tt class="py-name">a</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L284"></a><tt class="py-lineno">284</tt>  <tt class="py-line">        <tt class="py-name">d</tt> <tt class="py-op">=</tt> <tt class="py-name">l</tt><tt class="py-op">-</tt><tt class="py-number">1</tt> </tt>
<a name="L285"></a><tt class="py-lineno">285</tt>  <tt class="py-line">         </tt>
<a name="L286"></a><tt class="py-lineno">286</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-20" class="py-name" targets="Method pygml.Graph.find_virtual_vertices()=pygml.Graph-class.html#find_virtual_vertices"><a title="pygml.Graph.find_virtual_vertices" class="py-name" href="#" onclick="return doclink('link-20', 'find_virtual_vertices', 'link-20');">find_virtual_vertices</a></tt><tt class="py-op">(</tt><tt class="py-string">'#FF8C00'</tt><tt class="py-op">)</tt> </tt>
<a name="L287"></a><tt class="py-lineno">287</tt>  <tt class="py-line">         </tt>
<a name="L288"></a><tt class="py-lineno">288</tt>  <tt class="py-line">        <tt class="py-comment"># ####################################################################################</tt> </tt>
<a name="L289"></a><tt class="py-lineno">289</tt>  <tt class="py-line">        <tt class="py-comment"># Middle to Top</tt> </tt>
<a name="L290"></a><tt class="py-lineno">290</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-name">b</tt><tt class="py-op">,</tt><tt class="py-name">a</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">,</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L291"></a><tt class="py-lineno">291</tt>  <tt class="py-line">            <tt class="py-name">v_nodes</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-name">v</tt> <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt> <tt class="py-op">]</tt>            </tt>
<a name="L292"></a><tt class="py-lineno">292</tt>  <tt class="py-line">            <tt class="py-name">length_of_layer</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">v_nodes</tt><tt class="py-op">)</tt> </tt>
<a name="L293"></a><tt class="py-lineno">293</tt>  <tt class="py-line">            <tt class="py-name">middle</tt> <tt class="py-op">=</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">floor</tt><tt class="py-op">(</tt><tt class="py-name">length_of_layer</tt> <tt class="py-op">/</tt> <tt class="py-number">2</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L294"></a><tt class="py-lineno">294</tt>  <tt class="py-line">            <tt class="py-comment"># -----------------------------------------------------------------------------------------</tt> </tt>
<a name="L295"></a><tt class="py-lineno">295</tt>  <tt class="py-line">            <tt class="py-comment"># From right to left.</tt> </tt>
<a name="L296"></a><tt class="py-lineno">296</tt>  <tt class="py-line">            <tt class="py-name">our_list</tt> <tt class="py-op">=</tt> <tt class="py-name">v_nodes</tt><tt class="py-op">[</tt><tt class="py-name">middle</tt><tt class="py-op">:</tt><tt class="py-op">]</tt> </tt>
<a name="L297"></a><tt class="py-lineno">297</tt>  <tt class="py-line">            <tt class="py-name">our_list</tt><tt class="py-op">.</tt><tt class="py-name">reverse</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L298"></a><tt class="py-lineno">298</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">u</tt> <tt class="py-keyword">in</tt> <tt class="py-name">our_list</tt><tt class="py-op">:</tt> </tt>
<a name="L299"></a><tt class="py-lineno">299</tt>  <tt class="py-line">                <tt class="py-name">v</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">incoming_edges</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">u</tt> </tt>
<a name="L300"></a><tt class="py-lineno">300</tt>  <tt class="py-line">                <tt class="py-name">t</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">outgoing_edges</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">v</tt> </tt>
<a name="L301"></a><tt class="py-lineno">301</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> </tt>
<a name="L302"></a><tt class="py-lineno">302</tt>  <tt class="py-line">                    <tt class="py-keyword">continue</tt> </tt>
<a name="L303"></a><tt class="py-lineno">303</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> </tt>
<a name="L304"></a><tt class="py-lineno">304</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-21" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-21', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L305"></a><tt class="py-lineno">305</tt>  <tt class="py-line">                        <tt class="py-comment"># Move v to the left.</tt> </tt>
<a name="L306"></a><tt class="py-lineno">306</tt>  <tt class="py-line">                        <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L307"></a><tt class="py-lineno">307</tt>  <tt class="py-line">                    <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-22" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-22', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L308"></a><tt class="py-lineno">308</tt>  <tt class="py-line">                        <tt class="py-comment"># Move u to the right.</tt> </tt>
<a name="L309"></a><tt class="py-lineno">309</tt>  <tt class="py-line">                        <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L310"></a><tt class="py-lineno">310</tt>  <tt class="py-line">                <tt class="py-comment"># Only one bend =&gt; align vertically to the closest neighbor.</tt> </tt>
<a name="L311"></a><tt class="py-lineno">311</tt>  <tt class="py-line">                <tt class="py-keyword">elif</tt> <tt class="py-keyword">not</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> </tt>
<a name="L312"></a><tt class="py-lineno">312</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">abs</tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">abs</tt><tt class="py-op">(</tt><tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L313"></a><tt class="py-lineno">313</tt>  <tt class="py-line">                        <tt class="py-name">boss</tt> <tt class="py-op">=</tt> <tt class="py-name">t</tt> </tt>
<a name="L314"></a><tt class="py-lineno">314</tt>  <tt class="py-line">                    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L315"></a><tt class="py-lineno">315</tt>  <tt class="py-line">                        <tt class="py-name">boss</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L316"></a><tt class="py-lineno">316</tt>  <tt class="py-line">                     </tt>
<a name="L317"></a><tt class="py-lineno">317</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-23" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-23', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-24" class="py-name" targets="Method fastandsimple.FastAndSimple.order_changes()=fastandsimple.FastAndSimple-class.html#order_changes"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-24', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">,</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L318"></a><tt class="py-lineno">318</tt>  <tt class="py-line">                        <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L319"></a><tt class="py-lineno">319</tt>  <tt class="py-line">                    <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-25" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-25', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-26" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-26', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">boss</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L320"></a><tt class="py-lineno">320</tt>  <tt class="py-line">                        <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L321"></a><tt class="py-lineno">321</tt>  <tt class="py-line">                         </tt>
<a name="L322"></a><tt class="py-lineno">322</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L323"></a><tt class="py-lineno">323</tt>  <tt class="py-line">                    <tt class="py-comment"># First dummy node after real.</tt> </tt>
<a name="L324"></a><tt class="py-lineno">324</tt>  <tt class="py-line">                    <tt class="py-comment"># Align u to t.</tt> </tt>
<a name="L325"></a><tt class="py-lineno">325</tt>  <tt class="py-line">                    <tt class="py-comment">#print "First dummy after real! Align u to t:  v=%d, u=%d, t=%d" % (v.id, u.id, t.id)</tt> </tt>
<a name="L326"></a><tt class="py-lineno">326</tt>  <tt class="py-line">                    <tt class="py-name">boss</tt> <tt class="py-op">=</tt> <tt class="py-name">t</tt> </tt>
<a name="L327"></a><tt class="py-lineno">327</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-27" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-27', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-28" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-28', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">,</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L328"></a><tt class="py-lineno">328</tt>  <tt class="py-line">                        <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L329"></a><tt class="py-lineno">329</tt>  <tt class="py-line">                        <tt class="py-comment">#print "Doing what we want"</tt> </tt>
<a name="L330"></a><tt class="py-lineno">330</tt>  <tt class="py-line">                    <tt class="py-comment"># MAYBE WE SHOULD REMOVE THIS ELSE! </tt> </tt>
<a name="L331"></a><tt class="py-lineno">331</tt>  <tt class="py-line">                    <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-29" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-29', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-30" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-30', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">boss</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L332"></a><tt class="py-lineno">332</tt>  <tt class="py-line">                        <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L333"></a><tt class="py-lineno">333</tt>  <tt class="py-line">                        <tt class="py-comment">#print "We dont want this."</tt> </tt>
<a name="L334"></a><tt class="py-lineno">334</tt>  <tt class="py-line">                     </tt>
<a name="L335"></a><tt class="py-lineno">335</tt>  <tt class="py-line">                    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L336"></a><tt class="py-lineno">336</tt>  <tt class="py-line">                        <tt class="py-keyword">print</tt> <tt class="py-string">"It seems it's not feasible."</tt> </tt>
<a name="L337"></a><tt class="py-lineno">337</tt>  <tt class="py-line">                        <tt class="py-comment">#print "Feasible to align lower neighbor? ", self.feasible(boss.graphics.x, u.layer)</tt> </tt>
<a name="L338"></a><tt class="py-lineno">338</tt>  <tt class="py-line">                        <tt class="py-comment">#print "Order changes?", self.order_changes(u, boss.graphics.x)</tt> </tt>
<a name="L339"></a><tt class="py-lineno">339</tt>  <tt class="py-line">                        <tt class="py-comment">#print "Boss: ", boss.id, boss.graphics.x</tt> </tt>
<a name="L340"></a><tt class="py-lineno">340</tt>  <tt class="py-line">                        <tt class="py-comment">#print "Node: ", u.id, u.graphics.x</tt> </tt>
<a name="L341"></a><tt class="py-lineno">341</tt>  <tt class="py-line">            <tt class="py-comment"># ---------------------------------------------------------------------------------------</tt> </tt>
<a name="L342"></a><tt class="py-lineno">342</tt>  <tt class="py-line">            <tt class="py-comment"># From left to right</tt> </tt>
<a name="L343"></a><tt class="py-lineno">343</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">u</tt> <tt class="py-keyword">in</tt> <tt class="py-name">v_nodes</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">:</tt><tt class="py-name">middle</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L344"></a><tt class="py-lineno">344</tt>  <tt class="py-line">                <tt class="py-name">v</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">incoming_edges</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">u</tt> </tt>
<a name="L345"></a><tt class="py-lineno">345</tt>  <tt class="py-line">                <tt class="py-name">t</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">outgoing_edges</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">v</tt> </tt>
<a name="L346"></a><tt class="py-lineno">346</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> </tt>
<a name="L347"></a><tt class="py-lineno">347</tt>  <tt class="py-line">                    <tt class="py-keyword">continue</tt> </tt>
<a name="L348"></a><tt class="py-lineno">348</tt>  <tt class="py-line">             </tt>
<a name="L349"></a><tt class="py-lineno">349</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> </tt>
<a name="L350"></a><tt class="py-lineno">350</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-31" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-31', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-32" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-32', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L351"></a><tt class="py-lineno">351</tt>  <tt class="py-line">                        <tt class="py-comment"># Align v to u (move v to right)</tt> </tt>
<a name="L352"></a><tt class="py-lineno">352</tt>  <tt class="py-line">                        <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L353"></a><tt class="py-lineno">353</tt>  <tt class="py-line">                    <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-33" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-33', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-34" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-34', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L354"></a><tt class="py-lineno">354</tt>  <tt class="py-line">                        <tt class="py-comment"># Align u to v (move u to left)</tt> </tt>
<a name="L355"></a><tt class="py-lineno">355</tt>  <tt class="py-line">                        <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L356"></a><tt class="py-lineno">356</tt>  <tt class="py-line">                 </tt>
<a name="L357"></a><tt class="py-lineno">357</tt>  <tt class="py-line">                <tt class="py-comment"># Only one bend =&gt; align vertically to the closest neighbor.</tt> </tt>
<a name="L358"></a><tt class="py-lineno">358</tt>  <tt class="py-line">                <tt class="py-keyword">elif</tt> <tt class="py-keyword">not</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> </tt>
<a name="L359"></a><tt class="py-lineno">359</tt>  <tt class="py-line">                    <tt class="py-keyword">print</tt> <tt class="py-string">"Only one bend! v=%d, u=%d, t=%d"</tt> <tt class="py-op">%</tt> <tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">)</tt> </tt>
<a name="L360"></a><tt class="py-lineno">360</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">abs</tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">abs</tt><tt class="py-op">(</tt><tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L361"></a><tt class="py-lineno">361</tt>  <tt class="py-line">                        <tt class="py-name">boss</tt> <tt class="py-op">=</tt> <tt class="py-name">t</tt> </tt>
<a name="L362"></a><tt class="py-lineno">362</tt>  <tt class="py-line">                    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L363"></a><tt class="py-lineno">363</tt>  <tt class="py-line">                        <tt class="py-name">boss</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L364"></a><tt class="py-lineno">364</tt>  <tt class="py-line">                         </tt>
<a name="L365"></a><tt class="py-lineno">365</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-35" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-35', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-36" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-36', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">,</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L366"></a><tt class="py-lineno">366</tt>  <tt class="py-line">                        <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L367"></a><tt class="py-lineno">367</tt>  <tt class="py-line">                    <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-37" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-37', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-38" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-38', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">boss</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L368"></a><tt class="py-lineno">368</tt>  <tt class="py-line">                        <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L369"></a><tt class="py-lineno">369</tt>  <tt class="py-line">                       </tt>
<a name="L370"></a><tt class="py-lineno">370</tt>  <tt class="py-line">                         </tt>
<a name="L371"></a><tt class="py-lineno">371</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L372"></a><tt class="py-lineno">372</tt>  <tt class="py-line">                    <tt class="py-comment"># First dummy node after real.</tt> </tt>
<a name="L373"></a><tt class="py-lineno">373</tt>  <tt class="py-line">                    <tt class="py-comment"># Align u to t.</tt> </tt>
<a name="L374"></a><tt class="py-lineno">374</tt>  <tt class="py-line">                    <tt class="py-name">boss</tt> <tt class="py-op">=</tt> <tt class="py-name">t</tt> </tt>
<a name="L375"></a><tt class="py-lineno">375</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-39" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-39', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-40" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-40', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">,</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L376"></a><tt class="py-lineno">376</tt>  <tt class="py-line">                        <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L377"></a><tt class="py-lineno">377</tt>  <tt class="py-line">                    <tt class="py-comment"># MAYBE WE SHOULD REMOVE THIS ELSE! </tt> </tt>
<a name="L378"></a><tt class="py-lineno">378</tt>  <tt class="py-line">                    <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-41" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-41', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-42" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-42', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">boss</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L379"></a><tt class="py-lineno">379</tt>  <tt class="py-line">                        <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L380"></a><tt class="py-lineno">380</tt>  <tt class="py-line">        <tt class="py-comment"># ###################################################################################            </tt> </tt>
<a name="L381"></a><tt class="py-lineno">381</tt>  <tt class="py-line">        <tt class="py-comment"># Middle to Bottom</tt> </tt>
<a name="L382"></a><tt class="py-lineno">382</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-name">b</tt><tt class="py-op">,</tt><tt class="py-name">d</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L383"></a><tt class="py-lineno">383</tt>  <tt class="py-line">            <tt class="py-name">v_nodes</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-name">v</tt> <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt> <tt class="py-op">]</tt> </tt>
<a name="L384"></a><tt class="py-lineno">384</tt>  <tt class="py-line">             </tt>
<a name="L385"></a><tt class="py-lineno">385</tt>  <tt class="py-line">            <tt class="py-name">length_of_layer</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">v_nodes</tt><tt class="py-op">)</tt> </tt>
<a name="L386"></a><tt class="py-lineno">386</tt>  <tt class="py-line">            <tt class="py-name">middle</tt> <tt class="py-op">=</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">floor</tt><tt class="py-op">(</tt><tt class="py-name">length_of_layer</tt> <tt class="py-op">/</tt> <tt class="py-number">2</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L387"></a><tt class="py-lineno">387</tt>  <tt class="py-line">            <tt class="py-name">our_list</tt> <tt class="py-op">=</tt> <tt class="py-name">v_nodes</tt><tt class="py-op">[</tt><tt class="py-name">middle</tt><tt class="py-op">:</tt><tt class="py-op">]</tt> </tt>
<a name="L388"></a><tt class="py-lineno">388</tt>  <tt class="py-line">            <tt class="py-name">our_list</tt><tt class="py-op">.</tt><tt class="py-name">reverse</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L389"></a><tt class="py-lineno">389</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">u</tt> <tt class="py-keyword">in</tt> <tt class="py-name">our_list</tt><tt class="py-op">:</tt> </tt>
<a name="L390"></a><tt class="py-lineno">390</tt>  <tt class="py-line">                <tt class="py-name">v</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">outgoing_edges</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">v</tt> </tt>
<a name="L391"></a><tt class="py-lineno">391</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> </tt>
<a name="L392"></a><tt class="py-lineno">392</tt>  <tt class="py-line">                    <tt class="py-keyword">continue</tt> </tt>
<a name="L393"></a><tt class="py-lineno">393</tt>  <tt class="py-line">             </tt>
<a name="L394"></a><tt class="py-lineno">394</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> </tt>
<a name="L395"></a><tt class="py-lineno">395</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-43" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-43', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-44" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-44', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L396"></a><tt class="py-lineno">396</tt>  <tt class="py-line">                        <tt class="py-comment"># Move u to left</tt> </tt>
<a name="L397"></a><tt class="py-lineno">397</tt>  <tt class="py-line">                        <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L398"></a><tt class="py-lineno">398</tt>  <tt class="py-line">                         </tt>
<a name="L399"></a><tt class="py-lineno">399</tt>  <tt class="py-line">                    <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-45" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-45', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-46" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-46', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L400"></a><tt class="py-lineno">400</tt>  <tt class="py-line">                        <tt class="py-comment"># Move v to right</tt> </tt>
<a name="L401"></a><tt class="py-lineno">401</tt>  <tt class="py-line">                        <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L402"></a><tt class="py-lineno">402</tt>  <tt class="py-line">                 </tt>
<a name="L403"></a><tt class="py-lineno">403</tt>  <tt class="py-line">            <tt class="py-comment"># From left to right</tt> </tt>
<a name="L404"></a><tt class="py-lineno">404</tt>  <tt class="py-line">             </tt>
<a name="L405"></a><tt class="py-lineno">405</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">u</tt> <tt class="py-keyword">in</tt> <tt class="py-name">v_nodes</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">:</tt><tt class="py-name">middle</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L406"></a><tt class="py-lineno">406</tt>  <tt class="py-line">                <tt class="py-name">v</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">outgoing_edges</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">v</tt> </tt>
<a name="L407"></a><tt class="py-lineno">407</tt>  <tt class="py-line">                <tt class="py-name">t</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">incoming_edges</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">u</tt> </tt>
<a name="L408"></a><tt class="py-lineno">408</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> </tt>
<a name="L409"></a><tt class="py-lineno">409</tt>  <tt class="py-line">                    <tt class="py-keyword">continue</tt> </tt>
<a name="L410"></a><tt class="py-lineno">410</tt>  <tt class="py-line">             </tt>
<a name="L411"></a><tt class="py-lineno">411</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> </tt>
<a name="L412"></a><tt class="py-lineno">412</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-47" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-47', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-48" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-48', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L413"></a><tt class="py-lineno">413</tt>  <tt class="py-line">                        <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt>      </tt>
<a name="L414"></a><tt class="py-lineno">414</tt>  <tt class="py-line">                    <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-49" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-49', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-50" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-50', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L415"></a><tt class="py-lineno">415</tt>  <tt class="py-line">                        <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L416"></a><tt class="py-lineno">416</tt>  <tt class="py-line">                         </tt>
<a name="L417"></a><tt class="py-lineno">417</tt>  <tt class="py-line">                <tt class="py-comment"># Only one bend =&gt; align vertically to the closest neighbor.</tt> </tt>
<a name="L418"></a><tt class="py-lineno">418</tt>  <tt class="py-line">                <tt class="py-keyword">elif</tt> <tt class="py-keyword">not</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> </tt>
<a name="L419"></a><tt class="py-lineno">419</tt>  <tt class="py-line">                    <tt class="py-keyword">print</tt> <tt class="py-string">"Only one bend! v=%d, u=%d, t=%d"</tt> <tt class="py-op">%</tt> <tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt> <tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">)</tt> </tt>
<a name="L420"></a><tt class="py-lineno">420</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">abs</tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">abs</tt><tt class="py-op">(</tt><tt class="py-name">t</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L421"></a><tt class="py-lineno">421</tt>  <tt class="py-line">                        <tt class="py-name">boss</tt> <tt class="py-op">=</tt> <tt class="py-name">t</tt> </tt>
<a name="L422"></a><tt class="py-lineno">422</tt>  <tt class="py-line">                    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L423"></a><tt class="py-lineno">423</tt>  <tt class="py-line">                        <tt class="py-name">boss</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L424"></a><tt class="py-lineno">424</tt>  <tt class="py-line">                         </tt>
<a name="L425"></a><tt class="py-lineno">425</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-51" class="py-name"><a title="fastandsimple.FastAndSimple.feasible" class="py-name" href="#" onclick="return doclink('link-51', 'feasible', 'link-11');">feasible</a></tt><tt class="py-op">(</tt><tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-52" class="py-name"><a title="fastandsimple.FastAndSimple.order_changes" class="py-name" href="#" onclick="return doclink('link-52', 'order_changes', 'link-24');">order_changes</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">,</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L426"></a><tt class="py-lineno">426</tt>  <tt class="py-line">                        <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">boss</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L427"></a><tt class="py-lineno">427</tt>  <tt class="py-line">                        <tt class="py-keyword">print</tt> <tt class="py-string">"Aligning dummy."</tt> </tt>
<a name="L428"></a><tt class="py-lineno">428</tt>  <tt class="py-line">                    <tt class="py-comment">#elif self.feasible(u.graphics.x, boss.layer) and not self.order_changes(boss, u.graphics.x):</tt> </tt>
<a name="L429"></a><tt class="py-lineno">429</tt>  <tt class="py-line">                    <tt class="py-comment">#    boss.graphics.x = u.graphics.x</tt> </tt>
<a name="L430"></a><tt class="py-lineno">430</tt>  <tt class="py-line">                    <tt class="py-comment">#    print "Aligning boss."</tt> </tt>
<a name="L431"></a><tt class="py-lineno">431</tt>  <tt class="py-line">        </tt>
<a name="L432"></a><tt class="py-lineno">432</tt>  <tt class="py-line">                <tt class="py-string">"""else:</tt> </tt>
<a name="L433"></a><tt class="py-lineno">433</tt>  <tt class="py-line"><tt class="py-string">                    # First dummy node after real.</tt> </tt>
<a name="L434"></a><tt class="py-lineno">434</tt>  <tt class="py-line"><tt class="py-string">                    # Align u to t.</tt> </tt>
<a name="L435"></a><tt class="py-lineno">435</tt>  <tt class="py-line"><tt class="py-string">                    boss = t</tt> </tt>
<a name="L436"></a><tt class="py-lineno">436</tt>  <tt class="py-line"><tt class="py-string">                    if self.feasible(boss.graphics.x, u.layer) and not self.order_changes(u, boss.graphics.x):</tt> </tt>
<a name="L437"></a><tt class="py-lineno">437</tt>  <tt class="py-line"><tt class="py-string">                        u.graphics.x = boss.graphics.x</tt> </tt>
<a name="L438"></a><tt class="py-lineno">438</tt>  <tt class="py-line"><tt class="py-string">                    # MAYBE WE SHOULD REMOVE THIS ELSE! </tt> </tt>
<a name="L439"></a><tt class="py-lineno">439</tt>  <tt class="py-line"><tt class="py-string">                    elif self.feasible(u.graphics.x, boss.layer) and not self.order_changes(boss, u.graphics.x):</tt> </tt>
<a name="L440"></a><tt class="py-lineno">440</tt>  <tt class="py-line"><tt class="py-string">                        boss.graphics.x = u.graphics.x"""</tt> </tt>
</div><a name="L441"></a><tt class="py-lineno">441</tt>  <tt class="py-line">                         </tt>
<a name="FastAndSimple.hide_dummy_nodes"></a><div id="FastAndSimple.hide_dummy_nodes-def"><a name="L442"></a><tt class="py-lineno">442</tt> <a class="py-toggle" href="#" id="FastAndSimple.hide_dummy_nodes-toggle" onclick="return toggle('FastAndSimple.hide_dummy_nodes');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#hide_dummy_nodes">hide_dummy_nodes</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.hide_dummy_nodes-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.hide_dummy_nodes-expanded"><a name="L443"></a><tt class="py-lineno">443</tt>  <tt class="py-line">        <tt class="py-docstring">"""Hides dummy nodes in the graph"""</tt> </tt>
<a name="L444"></a><tt class="py-lineno">444</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Hiding dummy nodes..."</tt> </tt>
<a name="L445"></a><tt class="py-lineno">445</tt>  <tt class="py-line">        <tt class="py-comment">#print self.g.virtual_nodes</tt> </tt>
<a name="L446"></a><tt class="py-lineno">446</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">virtual_nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L447"></a><tt class="py-lineno">447</tt>  <tt class="py-line">            <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">w</tt> <tt class="py-op">=</tt> <tt class="py-number">0.01</tt> </tt>
<a name="L448"></a><tt class="py-lineno">448</tt>  <tt class="py-line">            <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">h</tt> <tt class="py-op">=</tt> <tt class="py-number">0.01</tt> </tt>
<a name="L449"></a><tt class="py-lineno">449</tt>  <tt class="py-line">            <tt class="py-comment">#node.graphics.fill = "#FFFFFF"</tt> </tt>
<a name="L450"></a><tt class="py-lineno">450</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">edge</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">edges</tt><tt class="py-op">:</tt> </tt>
<a name="L451"></a><tt class="py-lineno">451</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">virtual</tt><tt class="py-op">:</tt> </tt>
<a name="L452"></a><tt class="py-lineno">452</tt>  <tt class="py-line">                    <tt class="py-name">edge</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">arrow</tt> <tt class="py-op">=</tt> <tt class="py-string">"none"</tt> </tt>
</div><a name="L453"></a><tt class="py-lineno">453</tt>  <tt class="py-line">                     </tt>
<a name="FastAndSimple.adjustments"></a><div id="FastAndSimple.adjustments-def"><a name="L454"></a><tt class="py-lineno">454</tt> <a class="py-toggle" href="#" id="FastAndSimple.adjustments-toggle" onclick="return toggle('FastAndSimple.adjustments');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#adjustments">adjustments</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.adjustments-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.adjustments-expanded"><a name="L455"></a><tt class="py-lineno">455</tt>  <tt class="py-line">        <tt class="py-docstring">"""Some adjustments for the bug of the algorithm. Seperates overlapping nodes."""</tt> </tt>
<a name="L456"></a><tt class="py-lineno">456</tt>  <tt class="py-line">         </tt>
<a name="L457"></a><tt class="py-lineno">457</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Adjusting..."</tt> </tt>
<a name="L458"></a><tt class="py-lineno">458</tt>  <tt class="py-line">        <tt class="py-comment"># Aligns the false-ordered nodes to their root.        </tt> </tt>
<a name="L459"></a><tt class="py-lineno">459</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L460"></a><tt class="py-lineno">460</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">i</tt> <tt class="py-keyword">in</tt> <tt class="py-name">range</tt><tt class="py-op">(</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L461"></a><tt class="py-lineno">461</tt>  <tt class="py-line">                <tt class="py-name">current_layer</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> </tt>
<a name="L462"></a><tt class="py-lineno">462</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">i</tt><tt class="py-op">&gt;</tt><tt class="py-number">0</tt> <tt class="py-keyword">and</tt> <tt class="py-name">i</tt><tt class="py-op">&lt;</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">current_layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">and</tt> <tt class="py-name">current_layer</tt><tt class="py-op">[</tt><tt class="py-name">i</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">&lt;=</tt> <tt class="py-name">current_layer</tt><tt class="py-op">[</tt><tt class="py-name">i</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> </tt>
<a name="L463"></a><tt class="py-lineno">463</tt>  <tt class="py-line">                    <tt class="py-name">current_layer</tt><tt class="py-op">[</tt><tt class="py-name">i</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">current_layer</tt><tt class="py-op">[</tt><tt class="py-name">i</tt><tt class="py-op">]</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L464"></a><tt class="py-lineno">464</tt>  <tt class="py-line">                    <tt class="py-comment">#current_layer[i].graphics.x = (current_layer[i-1].graphics.x + current_layer[i+1].graphics.x)/2</tt> </tt>
<a name="L465"></a><tt class="py-lineno">465</tt>  <tt class="py-line">         </tt>
<a name="L466"></a><tt class="py-lineno">466</tt>  <tt class="py-line">        <tt class="py-string">"""</tt> </tt>
<a name="L467"></a><tt class="py-lineno">467</tt>  <tt class="py-line"><tt class="py-string">        # Shifts the overlapping nodes by half of their widths.</tt> </tt>
<a name="L468"></a><tt class="py-lineno">468</tt>  <tt class="py-line"><tt class="py-string">        for u in self.g.nodes:</tt> </tt>
<a name="L469"></a><tt class="py-lineno">469</tt>  <tt class="py-line"><tt class="py-string">            for v in self.g.nodes:</tt> </tt>
<a name="L470"></a><tt class="py-lineno">470</tt>  <tt class="py-line"><tt class="py-string">                if u != v and u.graphics.x == v.graphics.x and u.graphics.y == v.graphics.y:</tt> </tt>
<a name="L471"></a><tt class="py-lineno">471</tt>  <tt class="py-line"><tt class="py-string">                    if self.align[u].graphics.x &gt; self.align[v].graphics.x:</tt> </tt>
<a name="L472"></a><tt class="py-lineno">472</tt>  <tt class="py-line"><tt class="py-string">                        u.graphics.x += u.graphics.w/2+3</tt> </tt>
<a name="L473"></a><tt class="py-lineno">473</tt>  <tt class="py-line"><tt class="py-string">                        v.graphics.x -= v.graphics.w/2+3</tt> </tt>
<a name="L474"></a><tt class="py-lineno">474</tt>  <tt class="py-line"><tt class="py-string">                    else:</tt> </tt>
<a name="L475"></a><tt class="py-lineno">475</tt>  <tt class="py-line"><tt class="py-string">                        u.graphics.x -= u.graphics.w/2+3</tt> </tt>
<a name="L476"></a><tt class="py-lineno">476</tt>  <tt class="py-line"><tt class="py-string">                        v.graphics.x += v.graphics.w/2+3"""</tt> </tt>
<a name="L477"></a><tt class="py-lineno">477</tt>  <tt class="py-line">         </tt>
<a name="L478"></a><tt class="py-lineno">478</tt>  <tt class="py-line">        <tt class="py-name">layer_overlaps</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-number">0</tt><tt class="py-op">:</tt> <tt class="py-number">1</tt><tt class="py-op">}</tt> </tt>
<a name="L479"></a><tt class="py-lineno">479</tt>  <tt class="py-line">        <tt class="py-keyword">while</tt> <tt class="py-name">sum</tt><tt class="py-op">(</tt><tt class="py-name">layer_overlaps</tt><tt class="py-op">.</tt><tt class="py-name">values</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> <tt class="py-op">!=</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L480"></a><tt class="py-lineno">480</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L481"></a><tt class="py-lineno">481</tt>  <tt class="py-line">                <tt class="py-name">layer_overlaps</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L482"></a><tt class="py-lineno">482</tt>  <tt class="py-line">                <tt class="py-keyword">for</tt> <tt class="py-name">u</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L483"></a><tt class="py-lineno">483</tt>  <tt class="py-line">                    <tt class="py-name">v</tt> <tt class="py-op">=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt> </tt>
<a name="L484"></a><tt class="py-lineno">484</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">!=</tt><tt class="py-name">None</tt> <tt class="py-keyword">and</tt> <tt class="py-name">abs</tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">)</tt> <tt class="py-op">&lt;</tt> <tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">w</tt> <tt class="py-op">+</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">w</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-number">2</tt><tt class="py-op">:</tt> </tt>
<a name="L485"></a><tt class="py-lineno">485</tt>  <tt class="py-line">                        <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-=</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">w</tt><tt class="py-op">/</tt><tt class="py-number">2</tt> </tt>
<a name="L486"></a><tt class="py-lineno">486</tt>  <tt class="py-line">                        <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">+=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">w</tt><tt class="py-op">/</tt><tt class="py-number">2</tt> </tt>
<a name="L487"></a><tt class="py-lineno">487</tt>  <tt class="py-line">                        <tt class="py-name">layer_overlaps</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
</div><a name="L488"></a><tt class="py-lineno">488</tt>  <tt class="py-line">         </tt>
<a name="L489"></a><tt class="py-lineno">489</tt>  <tt class="py-line">     </tt>
<a name="FastAndSimple.debug"></a><div id="FastAndSimple.debug-def"><a name="L490"></a><tt class="py-lineno">490</tt> <a class="py-toggle" href="#" id="FastAndSimple.debug-toggle" onclick="return toggle('FastAndSimple.debug');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#debug">debug</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.debug-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.debug-expanded"><a name="L491"></a><tt class="py-lineno">491</tt>  <tt class="py-line">        <tt class="py-docstring">"""</tt> </tt>
<a name="L492"></a><tt class="py-lineno">492</tt>  <tt class="py-line"><tt class="py-docstring">        Some debugging stuff</tt> </tt>
<a name="L493"></a><tt class="py-lineno">493</tt>  <tt class="py-line"><tt class="py-docstring">        """</tt> </tt>
<a name="L494"></a><tt class="py-lineno">494</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Checking for overlaps..."</tt> </tt>
<a name="L495"></a><tt class="py-lineno">495</tt>  <tt class="py-line">        <tt class="py-comment"># Print the nodes that are overlapping</tt> </tt>
<a name="L496"></a><tt class="py-lineno">496</tt>  <tt class="py-line">        <tt class="py-name">count</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L497"></a><tt class="py-lineno">497</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L498"></a><tt class="py-lineno">498</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">u</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt>     </tt>
<a name="L499"></a><tt class="py-lineno">499</tt>  <tt class="py-line">                <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L500"></a><tt class="py-lineno">500</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">u</tt><tt class="py-op">!=</tt><tt class="py-name">v</tt> <tt class="py-keyword">and</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-keyword">and</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">y</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">y</tt><tt class="py-op">:</tt> </tt>
<a name="L501"></a><tt class="py-lineno">501</tt>  <tt class="py-line">                        <tt class="py-keyword">print</tt> <tt class="py-string">"%s (%0.0f, %0.0f) , %s (%0.0f, %0.0f)"</tt> <tt class="py-op">%</tt> <tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">u</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">y</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">y</tt><tt class="py-op">)</tt> </tt>
<a name="L502"></a><tt class="py-lineno">502</tt>  <tt class="py-line">                        <tt class="py-name">count</tt><tt class="py-op">+=</tt><tt class="py-number">1</tt> </tt>
<a name="L503"></a><tt class="py-lineno">503</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">count</tt><tt class="py-op">:</tt> </tt>
<a name="L504"></a><tt class="py-lineno">504</tt>  <tt class="py-line">            <tt class="py-keyword">print</tt> <tt class="py-string">"%d overlaps exist."</tt> <tt class="py-op">%</tt> <tt class="py-name">count</tt> </tt>
</div><a name="L505"></a><tt class="py-lineno">505</tt>  <tt class="py-line">         </tt>
<a name="FastAndSimple.preprocessing"></a><div id="FastAndSimple.preprocessing-def"><a name="L506"></a><tt class="py-lineno">506</tt> <a class="py-toggle" href="#" id="FastAndSimple.preprocessing-toggle" onclick="return toggle('FastAndSimple.preprocessing');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#preprocessing">preprocessing</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.preprocessing-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.preprocessing-expanded"><a name="L507"></a><tt class="py-lineno">507</tt>  <tt class="py-line">        <tt class="py-docstring">"""Marks the edges with type 1 crossing."""</tt> </tt>
<a name="L508"></a><tt class="py-lineno">508</tt>  <tt class="py-line">        <tt class="py-name">h</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">)</tt> </tt>
<a name="L509"></a><tt class="py-lineno">509</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">i</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-name">h</tt><tt class="py-op">-</tt><tt class="py-number">2</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> <tt class="py-comment">#i=2 to h-2</tt> </tt>
<a name="L510"></a><tt class="py-lineno">510</tt>  <tt class="py-line">            <tt class="py-name">k0</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L511"></a><tt class="py-lineno">511</tt>  <tt class="py-line">            <tt class="py-name">l</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L512"></a><tt class="py-lineno">512</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">l1</tt> <tt class="py-keyword">in</tt> <tt class="py-name">range</tt><tt class="py-op">(</tt><tt class="py-number">0</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-53" class="py-name" targets="Method pygml.Graph.layer_num_elements()=pygml.Graph-class.html#layer_num_elements"><a title="pygml.Graph.layer_num_elements" class="py-name" href="#" onclick="return doclink('link-53', 'layer_num_elements', 'link-53');">layer_num_elements</a></tt><tt class="py-op">(</tt><tt class="py-name">i</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L513"></a><tt class="py-lineno">513</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">l1</tt> <tt class="py-op">==</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-54" class="py-name"><a title="pygml.Graph.layer_num_elements" class="py-name" href="#" onclick="return doclink('link-54', 'layer_num_elements', 'link-53');">layer_num_elements</a></tt><tt class="py-op">(</tt><tt class="py-name">i</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">)</tt> <tt class="py-keyword">or</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-55" class="py-name" targets="Method pygml.Graph.is_end_incident()=pygml.Graph-class.html#is_end_incident"><a title="pygml.Graph.is_end_incident" class="py-name" href="#" onclick="return doclink('link-55', 'is_end_incident', 'link-55');">is_end_incident</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-56" class="py-name" targets="Method pygml.Graph.get_node()=pygml.Graph-class.html#get_node"><a title="pygml.Graph.get_node" class="py-name" href="#" onclick="return doclink('link-56', 'get_node', 'link-56');">get_node</a></tt><tt class="py-op">(</tt><tt class="py-name">i</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-name">l1</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> <tt class="py-comment">#incident means target v(i+1, l1) should be real and source is virtual?</tt> </tt>
<a name="L514"></a><tt class="py-lineno">514</tt>  <tt class="py-line">                    <tt class="py-name">k1</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-57" class="py-name"><a title="pygml.Graph.layer_num_elements" class="py-name" href="#" onclick="return doclink('link-57', 'layer_num_elements', 'link-53');">layer_num_elements</a></tt><tt class="py-op">(</tt><tt class="py-name">i</tt><tt class="py-op">)</tt> </tt>
<a name="L515"></a><tt class="py-lineno">515</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-58" class="py-name"><a title="pygml.Graph.is_end_incident" class="py-name" href="#" onclick="return doclink('link-58', 'is_end_incident', 'link-55');">is_end_incident</a></tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-59" class="py-name"><a title="pygml.Graph.get_node" class="py-name" href="#" onclick="return doclink('link-59', 'get_node', 'link-56');">get_node</a></tt><tt class="py-op">(</tt><tt class="py-name">i</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-name">l1</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L516"></a><tt class="py-lineno">516</tt>  <tt class="py-line">                        <tt class="py-name">k1</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-60" class="py-name"><a title="pygml.Graph.get_node" class="py-name" href="#" onclick="return doclink('link-60', 'get_node', 'link-56');">get_node</a></tt><tt class="py-op">(</tt><tt class="py-name">i</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-name">l1</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt id="link-61" class="py-name"><a title="pygml.Node.upper_neighbors" class="py-name" href="#" onclick="return doclink('link-61', 'upper_neighbors', 'link-8');">upper_neighbors</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> </tt>
<a name="L517"></a><tt class="py-lineno">517</tt>  <tt class="py-line">                    <tt class="py-keyword">while</tt> <tt class="py-name">l</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">l1</tt><tt class="py-op">:</tt> </tt>
<a name="L518"></a><tt class="py-lineno">518</tt>  <tt class="py-line">                         </tt>
<a name="L519"></a><tt class="py-lineno">519</tt>  <tt class="py-line">                        <tt class="py-keyword">for</tt> <tt class="py-name">un</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-62" class="py-name"><a title="pygml.Graph.get_node" class="py-name" href="#" onclick="return doclink('link-62', 'get_node', 'link-56');">get_node</a></tt><tt class="py-op">(</tt><tt class="py-name">i</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-name">l</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt id="link-63" class="py-name"><a title="pygml.Node.upper_neighbors" class="py-name" href="#" onclick="return doclink('link-63', 'upper_neighbors', 'link-8');">upper_neighbors</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L520"></a><tt class="py-lineno">520</tt>  <tt class="py-line">                            <tt class="py-keyword">if</tt> <tt class="py-name">un</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">k0</tt> <tt class="py-keyword">or</tt> <tt class="py-name">un</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">k1</tt><tt class="py-op">:</tt> </tt>
<a name="L521"></a><tt class="py-lineno">521</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-64" class="py-name" targets="Method pygml.Graph.mark_segment()=pygml.Graph-class.html#mark_segment"><a title="pygml.Graph.mark_segment" class="py-name" href="#" onclick="return doclink('link-64', 'mark_segment', 'link-64');">mark_segment</a></tt><tt class="py-op">(</tt><tt class="py-name">un</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-65" class="py-name"><a title="pygml.Graph.get_node" class="py-name" href="#" onclick="return doclink('link-65', 'get_node', 'link-56');">get_node</a></tt><tt class="py-op">(</tt><tt class="py-name">i</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-name">l</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L522"></a><tt class="py-lineno">522</tt>  <tt class="py-line">                        <tt class="py-name">l</tt> <tt class="py-op">+=</tt> <tt class="py-number">1</tt> </tt>
<a name="L523"></a><tt class="py-lineno">523</tt>  <tt class="py-line">                    <tt class="py-name">k0</tt> <tt class="py-op">=</tt> <tt class="py-name">k1</tt> </tt>
</div><a name="L524"></a><tt class="py-lineno">524</tt>  <tt class="py-line">     </tt>
<a name="FastAndSimple.vertical_alignment_up_left"></a><div id="FastAndSimple.vertical_alignment_up_left-def"><a name="L525"></a><tt class="py-lineno">525</tt> <a class="py-toggle" href="#" id="FastAndSimple.vertical_alignment_up_left-toggle" onclick="return toggle('FastAndSimple.vertical_alignment_up_left');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#vertical_alignment_up_left">vertical_alignment_up_left</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.vertical_alignment_up_left-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.vertical_alignment_up_left-expanded"><a name="L526"></a><tt class="py-lineno">526</tt>  <tt class="py-line">        <tt class="py-docstring">"""Aligns the nodes to their roots (constructing blocks) - ALG2 for upper left"""</tt> </tt>
<a name="L527"></a><tt class="py-lineno">527</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Vertical Alignment Up left..."</tt> </tt>
<a name="L528"></a><tt class="py-lineno">528</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L529"></a><tt class="py-lineno">529</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L530"></a><tt class="py-lineno">530</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L531"></a><tt class="py-lineno">531</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt> </tt>
<a name="L532"></a><tt class="py-lineno">532</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt> </tt>
<a name="L533"></a><tt class="py-lineno">533</tt>  <tt class="py-line">         </tt>
<a name="L534"></a><tt class="py-lineno">534</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">range</tt><tt class="py-op">(</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L535"></a><tt class="py-lineno">535</tt>  <tt class="py-line">            <tt class="py-name">r</tt> <tt class="py-op">=</tt> <tt class="py-op">-</tt><tt class="py-number">1</tt> </tt>
<a name="L536"></a><tt class="py-lineno">536</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L537"></a><tt class="py-lineno">537</tt>  <tt class="py-line">                <tt class="py-name">neighbors</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt id="link-66" class="py-name"><a title="pygml.Node.upper_neighbors" class="py-name" href="#" onclick="return doclink('link-66', 'upper_neighbors', 'link-8');">upper_neighbors</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L538"></a><tt class="py-lineno">538</tt>  <tt class="py-line">                <tt class="py-name">d</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">neighbors</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L539"></a><tt class="py-lineno">539</tt>  <tt class="py-line">                 </tt>
<a name="L540"></a><tt class="py-lineno">540</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">d</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L541"></a><tt class="py-lineno">541</tt>  <tt class="py-line">                    <tt class="py-keyword">for</tt> <tt class="py-name">m</tt> <tt class="py-keyword">in</tt> <tt class="py-op">(</tt> <tt class="py-name">floor</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-name">d</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-number">2</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">ceil</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-name">d</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-number">2</tt><tt class="py-op">)</tt> <tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L542"></a><tt class="py-lineno">542</tt>  <tt class="py-line">                        <tt class="py-name">m</tt> <tt class="py-op">=</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">m</tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt> </tt>
<a name="L543"></a><tt class="py-lineno">543</tt>  <tt class="py-line">                        <tt class="py-keyword">if</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L544"></a><tt class="py-lineno">544</tt>  <tt class="py-line">                            <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-67" class="py-name" targets="Method pygml.Graph.get_edge()=pygml.Graph-class.html#get_edge"><a title="pygml.Graph.get_edge" class="py-name" href="#" onclick="return doclink('link-67', 'get_edge', 'link-67');">get_edge</a></tt><tt class="py-op">(</tt><tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">marked</tt> <tt class="py-keyword">and</tt> <tt class="py-name">r</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">position</tt><tt class="py-op">:</tt> </tt>
<a name="L545"></a><tt class="py-lineno">545</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L546"></a><tt class="py-lineno">546</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">]</tt>     </tt>
<a name="L547"></a><tt class="py-lineno">547</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> </tt>
<a name="L548"></a><tt class="py-lineno">548</tt>  <tt class="py-line">                                <tt class="py-name">r</tt> <tt class="py-op">=</tt> <tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> </tt>
</div><a name="L549"></a><tt class="py-lineno">549</tt>  <tt class="py-line">                 </tt>
<a name="FastAndSimple.vertical_alignment_up_right"></a><div id="FastAndSimple.vertical_alignment_up_right-def"><a name="L550"></a><tt class="py-lineno">550</tt> <a class="py-toggle" href="#" id="FastAndSimple.vertical_alignment_up_right-toggle" onclick="return toggle('FastAndSimple.vertical_alignment_up_right');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#vertical_alignment_up_right">vertical_alignment_up_right</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.vertical_alignment_up_right-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.vertical_alignment_up_right-expanded"><a name="L551"></a><tt class="py-lineno">551</tt>  <tt class="py-line">        <tt class="py-docstring">"""Aligns the nodes to their roots (constructing blocks) - ALG2 for upper right"""</tt> </tt>
<a name="L552"></a><tt class="py-lineno">552</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Vertical Alignment Up Right..."</tt> </tt>
<a name="L553"></a><tt class="py-lineno">553</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L554"></a><tt class="py-lineno">554</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L555"></a><tt class="py-lineno">555</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L556"></a><tt class="py-lineno">556</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt> </tt>
<a name="L557"></a><tt class="py-lineno">557</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt> </tt>
<a name="L558"></a><tt class="py-lineno">558</tt>  <tt class="py-line">         </tt>
<a name="L559"></a><tt class="py-lineno">559</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">range</tt><tt class="py-op">(</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L560"></a><tt class="py-lineno">560</tt>  <tt class="py-line">            <tt class="py-name">r</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> <tt class="py-comment"># Changed 0 to last index for right</tt> </tt>
<a name="L561"></a><tt class="py-lineno">561</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-op">:</tt><tt class="py-op">:</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> <tt class="py-comment"># Changed order for right</tt> </tt>
<a name="L562"></a><tt class="py-lineno">562</tt>  <tt class="py-line">                <tt class="py-name">neighbors</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt id="link-68" class="py-name"><a title="pygml.Node.upper_neighbors" class="py-name" href="#" onclick="return doclink('link-68', 'upper_neighbors', 'link-8');">upper_neighbors</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L563"></a><tt class="py-lineno">563</tt>  <tt class="py-line">                <tt class="py-name">d</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">neighbors</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L564"></a><tt class="py-lineno">564</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">d</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L565"></a><tt class="py-lineno">565</tt>  <tt class="py-line">                    <tt class="py-keyword">for</tt> <tt class="py-name">m</tt> <tt class="py-keyword">in</tt> <tt class="py-op">(</tt> <tt class="py-name">ceil</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-name">d</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-number">2</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">floor</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-name">d</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-number">2</tt><tt class="py-op">)</tt> <tt class="py-op">)</tt><tt class="py-op">:</tt> <tt class="py-comment">#changed order for right</tt> </tt>
<a name="L566"></a><tt class="py-lineno">566</tt>  <tt class="py-line">                        <tt class="py-name">m</tt> <tt class="py-op">=</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">m</tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt> </tt>
<a name="L567"></a><tt class="py-lineno">567</tt>  <tt class="py-line">                         </tt>
<a name="L568"></a><tt class="py-lineno">568</tt>  <tt class="py-line">                        <tt class="py-keyword">if</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L569"></a><tt class="py-lineno">569</tt>  <tt class="py-line">                             </tt>
<a name="L570"></a><tt class="py-lineno">570</tt>  <tt class="py-line">                            <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-69" class="py-name"><a title="pygml.Graph.get_edge" class="py-name" href="#" onclick="return doclink('link-69', 'get_edge', 'link-67');">get_edge</a></tt><tt class="py-op">(</tt><tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">v</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">marked</tt> <tt class="py-keyword">and</tt> <tt class="py-name">r</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">position</tt><tt class="py-op">:</tt> <tt class="py-comment"># Changed &lt; to &gt; for right</tt> </tt>
<a name="L571"></a><tt class="py-lineno">571</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L572"></a><tt class="py-lineno">572</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> </tt>
<a name="L573"></a><tt class="py-lineno">573</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> </tt>
<a name="L574"></a><tt class="py-lineno">574</tt>  <tt class="py-line">                                <tt class="py-name">r</tt> <tt class="py-op">=</tt> <tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> </tt>
</div><a name="L575"></a><tt class="py-lineno">575</tt>  <tt class="py-line">                                 </tt>
<a name="FastAndSimple.vertical_alignment_down_right"></a><div id="FastAndSimple.vertical_alignment_down_right-def"><a name="L576"></a><tt class="py-lineno">576</tt> <a class="py-toggle" href="#" id="FastAndSimple.vertical_alignment_down_right-toggle" onclick="return toggle('FastAndSimple.vertical_alignment_down_right');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#vertical_alignment_down_right">vertical_alignment_down_right</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.vertical_alignment_down_right-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.vertical_alignment_down_right-expanded"><a name="L577"></a><tt class="py-lineno">577</tt>  <tt class="py-line">        <tt class="py-docstring">"""Aligns the nodes to their roots (constructing blocks) - ALG2 for lower right"""</tt> </tt>
<a name="L578"></a><tt class="py-lineno">578</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Vertical Alignment Down Right..."</tt> </tt>
<a name="L579"></a><tt class="py-lineno">579</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L580"></a><tt class="py-lineno">580</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L581"></a><tt class="py-lineno">581</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L582"></a><tt class="py-lineno">582</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt> </tt>
<a name="L583"></a><tt class="py-lineno">583</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt> </tt>
<a name="L584"></a><tt class="py-lineno">584</tt>  <tt class="py-line">         </tt>
<a name="L585"></a><tt class="py-lineno">585</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">range</tt><tt class="py-op">(</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">[</tt><tt class="py-op">:</tt><tt class="py-op">:</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L586"></a><tt class="py-lineno">586</tt>  <tt class="py-line">            <tt class="py-name">r</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> <tt class="py-comment"># Changed 0 to last index for right</tt> </tt>
<a name="L587"></a><tt class="py-lineno">587</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-op">:</tt><tt class="py-op">:</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> <tt class="py-comment"># Changed order for right</tt> </tt>
<a name="L588"></a><tt class="py-lineno">588</tt>  <tt class="py-line">                <tt class="py-name">neighbors</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt id="link-70" class="py-name"><a title="pygml.Node.lower_neighbors" class="py-name" href="#" onclick="return doclink('link-70', 'lower_neighbors', 'link-9');">lower_neighbors</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L589"></a><tt class="py-lineno">589</tt>  <tt class="py-line">                <tt class="py-name">neighbors</tt><tt class="py-op">.</tt><tt class="py-name">reverse</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L590"></a><tt class="py-lineno">590</tt>  <tt class="py-line">                <tt class="py-name">d</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">neighbors</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L591"></a><tt class="py-lineno">591</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">d</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L592"></a><tt class="py-lineno">592</tt>  <tt class="py-line">                    <tt class="py-keyword">for</tt> <tt class="py-name">m</tt> <tt class="py-keyword">in</tt> <tt class="py-op">(</tt> <tt class="py-name">floor</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-name">d</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-number">2</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">ceil</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-name">d</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-number">2</tt><tt class="py-op">)</tt> <tt class="py-op">)</tt><tt class="py-op">:</tt> <tt class="py-comment">#changed order for right</tt> </tt>
<a name="L593"></a><tt class="py-lineno">593</tt>  <tt class="py-line">                        <tt class="py-name">m</tt> <tt class="py-op">=</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">m</tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt> </tt>
<a name="L594"></a><tt class="py-lineno">594</tt>  <tt class="py-line">                        <tt class="py-keyword">if</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L595"></a><tt class="py-lineno">595</tt>  <tt class="py-line">                            <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-71" class="py-name"><a title="pygml.Graph.get_edge" class="py-name" href="#" onclick="return doclink('link-71', 'get_edge', 'link-67');">get_edge</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">,</tt> <tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">marked</tt> <tt class="py-keyword">and</tt> <tt class="py-name">r</tt> <tt class="py-op">&gt;</tt> <tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">position</tt><tt class="py-op">:</tt> <tt class="py-comment"># Changed &lt; to &gt; for right</tt> </tt>
<a name="L596"></a><tt class="py-lineno">596</tt>  <tt class="py-line">                 </tt>
<a name="L597"></a><tt class="py-lineno">597</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L598"></a><tt class="py-lineno">598</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> </tt>
<a name="L599"></a><tt class="py-lineno">599</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> </tt>
<a name="L600"></a><tt class="py-lineno">600</tt>  <tt class="py-line">                                <tt class="py-name">r</tt> <tt class="py-op">=</tt> <tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> </tt>
</div><a name="L601"></a><tt class="py-lineno">601</tt>  <tt class="py-line">                                 </tt>
<a name="L602"></a><tt class="py-lineno">602</tt>  <tt class="py-line">                                 </tt>
<a name="FastAndSimple.vertical_alignment_down_left"></a><div id="FastAndSimple.vertical_alignment_down_left-def"><a name="L603"></a><tt class="py-lineno">603</tt> <a class="py-toggle" href="#" id="FastAndSimple.vertical_alignment_down_left-toggle" onclick="return toggle('FastAndSimple.vertical_alignment_down_left');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#vertical_alignment_down_left">vertical_alignment_down_left</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.vertical_alignment_down_left-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.vertical_alignment_down_left-expanded"><a name="L604"></a><tt class="py-lineno">604</tt>  <tt class="py-line">        <tt class="py-docstring">"""Aligns the nodes to their roots (constructing blocks) - ALG2 for lower left"""</tt> </tt>
<a name="L605"></a><tt class="py-lineno">605</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Vertical Alignment Down left..."</tt> </tt>
<a name="L606"></a><tt class="py-lineno">606</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L607"></a><tt class="py-lineno">607</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L608"></a><tt class="py-lineno">608</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L609"></a><tt class="py-lineno">609</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt> </tt>
<a name="L610"></a><tt class="py-lineno">610</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt> </tt>
<a name="L611"></a><tt class="py-lineno">611</tt>  <tt class="py-line">         </tt>
<a name="L612"></a><tt class="py-lineno">612</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">range</tt><tt class="py-op">(</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">)</tt><tt class="py-op">)</tt><tt class="py-op">[</tt><tt class="py-op">:</tt><tt class="py-op">:</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L613"></a><tt class="py-lineno">613</tt>  <tt class="py-line">            <tt class="py-name">r</tt> <tt class="py-op">=</tt> <tt class="py-op">-</tt><tt class="py-number">1</tt> </tt>
<a name="L614"></a><tt class="py-lineno">614</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L615"></a><tt class="py-lineno">615</tt>  <tt class="py-line">                <tt class="py-name">neighbors</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt><tt class="py-op">.</tt><tt id="link-72" class="py-name"><a title="pygml.Node.lower_neighbors" class="py-name" href="#" onclick="return doclink('link-72', 'lower_neighbors', 'link-9');">lower_neighbors</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L616"></a><tt class="py-lineno">616</tt>  <tt class="py-line">                <tt class="py-name">d</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">neighbors</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L617"></a><tt class="py-lineno">617</tt>  <tt class="py-line">     </tt>
<a name="L618"></a><tt class="py-lineno">618</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">d</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L619"></a><tt class="py-lineno">619</tt>  <tt class="py-line">                    <tt class="py-keyword">for</tt> <tt class="py-name">m</tt> <tt class="py-keyword">in</tt> <tt class="py-op">(</tt> <tt class="py-name">floor</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-name">d</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-number">2</tt><tt class="py-op">)</tt><tt class="py-op">,</tt> <tt class="py-name">ceil</tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-name">d</tt><tt class="py-op">+</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-number">2</tt><tt class="py-op">)</tt> <tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L620"></a><tt class="py-lineno">620</tt>  <tt class="py-line">                        <tt class="py-name">m</tt> <tt class="py-op">=</tt> <tt class="py-name">int</tt><tt class="py-op">(</tt><tt class="py-name">m</tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt> </tt>
<a name="L621"></a><tt class="py-lineno">621</tt>  <tt class="py-line">                         </tt>
<a name="L622"></a><tt class="py-lineno">622</tt>  <tt class="py-line">                        <tt class="py-keyword">if</tt> <tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L623"></a><tt class="py-lineno">623</tt>  <tt class="py-line">                            <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-73" class="py-name"><a title="pygml.Graph.get_edge" class="py-name" href="#" onclick="return doclink('link-73', 'get_edge', 'link-67');">get_edge</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">,</tt> <tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">marked</tt> <tt class="py-keyword">and</tt> <tt class="py-name">r</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">position</tt><tt class="py-op">:</tt> <tt class="py-comment"># Changed (n,v) to (v, neighbors[m])</tt> </tt>
<a name="L624"></a><tt class="py-lineno">624</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L625"></a><tt class="py-lineno">625</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> </tt>
<a name="L626"></a><tt class="py-lineno">626</tt>  <tt class="py-line">                                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> </tt>
<a name="L627"></a><tt class="py-lineno">627</tt>  <tt class="py-line">                                <tt class="py-name">r</tt> <tt class="py-op">=</tt> <tt class="py-name">neighbors</tt><tt class="py-op">[</tt><tt class="py-name">m</tt><tt class="py-op">]</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> </tt>
</div><a name="L628"></a><tt class="py-lineno">628</tt>  <tt class="py-line"> </tt>
<a name="FastAndSimple.place_block_left"></a><div id="FastAndSimple.place_block_left-def"><a name="L629"></a><tt class="py-lineno">629</tt> <a class="py-toggle" href="#" id="FastAndSimple.place_block_left-toggle" onclick="return toggle('FastAndSimple.place_block_left');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#place_block_left">place_block_left</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">v</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.place_block_left-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.place_block_left-expanded"><a name="L630"></a><tt class="py-lineno">630</tt>  <tt class="py-line">        <tt class="py-docstring">"""Places the block of the given node into classes. (ALG 3) for left."""</tt> </tt>
<a name="L631"></a><tt class="py-lineno">631</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">.</tt><tt class="py-name">get</tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L632"></a><tt class="py-lineno">632</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L633"></a><tt class="py-lineno">633</tt>  <tt class="py-line">            <tt class="py-name">w</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L634"></a><tt class="py-lineno">634</tt>  <tt class="py-line">            <tt class="py-name">start</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L635"></a><tt class="py-lineno">635</tt>  <tt class="py-line">            <tt class="py-keyword">while</tt> <tt class="py-name">w</tt><tt class="py-op">!=</tt><tt class="py-name">v</tt> <tt class="py-keyword">or</tt> <tt class="py-name">start</tt><tt class="py-op">:</tt> </tt>
<a name="L636"></a><tt class="py-lineno">636</tt>  <tt class="py-line">                <tt class="py-name">start</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L637"></a><tt class="py-lineno">637</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">w</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L638"></a><tt class="py-lineno">638</tt>  <tt class="py-line">                    <tt class="py-name">u</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">w</tt><tt class="py-op">.</tt><tt class="py-name">pred</tt><tt class="py-op">]</tt> </tt>
<a name="L639"></a><tt class="py-lineno">639</tt>  <tt class="py-line">                     </tt>
<a name="L640"></a><tt class="py-lineno">640</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-74" class="py-name" targets="Method fastandsimple.FastAndSimple.place_block_left()=fastandsimple.FastAndSimple-class.html#place_block_left"><a title="fastandsimple.FastAndSimple.place_block_left" class="py-name" href="#" onclick="return doclink('link-74', 'place_block_left', 'link-74');">place_block_left</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">)</tt> </tt>
<a name="L641"></a><tt class="py-lineno">641</tt>  <tt class="py-line">                     </tt>
<a name="L642"></a><tt class="py-lineno">642</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">:</tt> </tt>
<a name="L643"></a><tt class="py-lineno">643</tt>  <tt class="py-line">                        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt> </tt>
<a name="L644"></a><tt class="py-lineno">644</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">!=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt><tt class="py-op">:</tt>       </tt>
<a name="L645"></a><tt class="py-lineno">645</tt>  <tt class="py-line">                        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">min</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt><tt class="py-op">)</tt> </tt>
<a name="L646"></a><tt class="py-lineno">646</tt>  <tt class="py-line">                    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L647"></a><tt class="py-lineno">647</tt>  <tt class="py-line">                        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt>  <tt class="py-op">=</tt> <tt class="py-name">max</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt><tt class="py-op">)</tt> </tt>
<a name="L648"></a><tt class="py-lineno">648</tt>  <tt class="py-line">                <tt class="py-name">w</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">w</tt><tt class="py-op">]</tt> </tt>
</div><a name="L649"></a><tt class="py-lineno">649</tt>  <tt class="py-line">                 </tt>
<a name="FastAndSimple.place_block_right"></a><div id="FastAndSimple.place_block_right-def"><a name="L650"></a><tt class="py-lineno">650</tt> <a class="py-toggle" href="#" id="FastAndSimple.place_block_right-toggle" onclick="return toggle('FastAndSimple.place_block_right');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#place_block_right">place_block_right</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">v</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.place_block_right-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.place_block_right-expanded"><a name="L651"></a><tt class="py-lineno">651</tt>  <tt class="py-line">        <tt class="py-docstring">"""Places the block of the given node into classes. (ALG 3) for right."""</tt> </tt>
<a name="L652"></a><tt class="py-lineno">652</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">.</tt><tt class="py-name">get</tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L653"></a><tt class="py-lineno">653</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L654"></a><tt class="py-lineno">654</tt>  <tt class="py-line">            <tt class="py-name">w</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L655"></a><tt class="py-lineno">655</tt>  <tt class="py-line">            <tt class="py-name">start</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L656"></a><tt class="py-lineno">656</tt>  <tt class="py-line">            <tt class="py-keyword">while</tt> <tt class="py-name">w</tt><tt class="py-op">!=</tt><tt class="py-name">v</tt> <tt class="py-keyword">or</tt> <tt class="py-name">start</tt><tt class="py-op">:</tt> </tt>
<a name="L657"></a><tt class="py-lineno">657</tt>  <tt class="py-line">                <tt class="py-name">start</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L658"></a><tt class="py-lineno">658</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">w</tt><tt class="py-op">.</tt><tt class="py-name">position</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">w</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L659"></a><tt class="py-lineno">659</tt>  <tt class="py-line">                    <tt class="py-name">u</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">w</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt><tt class="py-op">]</tt> </tt>
<a name="L660"></a><tt class="py-lineno">660</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-75" class="py-name" targets="Method fastandsimple.FastAndSimple.place_block_right()=fastandsimple.FastAndSimple-class.html#place_block_right"><a title="fastandsimple.FastAndSimple.place_block_right" class="py-name" href="#" onclick="return doclink('link-75', 'place_block_right', 'link-75');">place_block_right</a></tt><tt class="py-op">(</tt><tt class="py-name">u</tt><tt class="py-op">)</tt> </tt>
<a name="L661"></a><tt class="py-lineno">661</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">:</tt> </tt>
<a name="L662"></a><tt class="py-lineno">662</tt>  <tt class="py-line">                        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt> </tt>
<a name="L663"></a><tt class="py-lineno">663</tt>  <tt class="py-line">                    <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">!=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt><tt class="py-op">:</tt>                                                </tt>
<a name="L664"></a><tt class="py-lineno">664</tt>  <tt class="py-line">                        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">min</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt><tt class="py-op">)</tt> </tt>
<a name="L665"></a><tt class="py-lineno">665</tt>  <tt class="py-line">                    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L666"></a><tt class="py-lineno">666</tt>  <tt class="py-line">                        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt>  <tt class="py-op">=</tt> <tt class="py-name">min</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">u</tt><tt class="py-op">]</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt><tt class="py-op">)</tt> </tt>
<a name="L667"></a><tt class="py-lineno">667</tt>  <tt class="py-line">                 </tt>
<a name="L668"></a><tt class="py-lineno">668</tt>  <tt class="py-line">                <tt class="py-name">w</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">align</tt><tt class="py-op">[</tt><tt class="py-name">w</tt><tt class="py-op">]</tt> </tt>
</div><a name="L669"></a><tt class="py-lineno">669</tt>  <tt class="py-line">     </tt>
<a name="L670"></a><tt class="py-lineno">670</tt>  <tt class="py-line">     </tt>
<a name="L671"></a><tt class="py-lineno">671</tt>  <tt class="py-line">     </tt>
<a name="FastAndSimple.horizontal_compaction_up_left"></a><div id="FastAndSimple.horizontal_compaction_up_left-def"><a name="L672"></a><tt class="py-lineno">672</tt> <a class="py-toggle" href="#" id="FastAndSimple.horizontal_compaction_up_left-toggle" onclick="return toggle('FastAndSimple.horizontal_compaction_up_left');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#horizontal_compaction_up_left">horizontal_compaction_up_left</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.horizontal_compaction_up_left-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.horizontal_compaction_up_left-expanded"><a name="L673"></a><tt class="py-lineno">673</tt>  <tt class="py-line">        <tt class="py-docstring">"""Final X-coordinate assignment phase (ALG3) for upper left."""</tt> </tt>
<a name="L674"></a><tt class="py-lineno">674</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Horizontal Compaction up left..."</tt> </tt>
<a name="L675"></a><tt class="py-lineno">675</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L676"></a><tt class="py-lineno">676</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L677"></a><tt class="py-lineno">677</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-string">"infinity"</tt><tt class="py-op">)</tt> </tt>
<a name="L678"></a><tt class="py-lineno">678</tt>  <tt class="py-line">     </tt>
<a name="L679"></a><tt class="py-lineno">679</tt>  <tt class="py-line">        <tt class="py-comment"># root coordinates relative to self.sink</tt> </tt>
<a name="L680"></a><tt class="py-lineno">680</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L681"></a><tt class="py-lineno">681</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L682"></a><tt class="py-lineno">682</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">:</tt> </tt>
<a name="L683"></a><tt class="py-lineno">683</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-76" class="py-name"><a title="fastandsimple.FastAndSimple.place_block_left" class="py-name" href="#" onclick="return doclink('link-76', 'place_block_left', 'link-74');">place_block_left</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">)</tt> </tt>
<a name="L684"></a><tt class="py-lineno">684</tt>  <tt class="py-line">         </tt>
<a name="L685"></a><tt class="py-lineno">685</tt>  <tt class="py-line">        <tt class="py-comment"># absolute coordinates</tt> </tt>
<a name="L686"></a><tt class="py-lineno">686</tt>  <tt class="py-line">        <tt class="py-comment">#for v in self.g.nodes:</tt> </tt>
<a name="L687"></a><tt class="py-lineno">687</tt>  <tt class="py-line">         </tt>
<a name="L688"></a><tt class="py-lineno">688</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L689"></a><tt class="py-lineno">689</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L690"></a><tt class="py-lineno">690</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt>         </tt>
<a name="L691"></a><tt class="py-lineno">691</tt>  <tt class="py-line">                 </tt>
<a name="L692"></a><tt class="py-lineno">692</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">==</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-keyword">and</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-string">"infinity"</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L693"></a><tt class="py-lineno">693</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> </tt>
</div><a name="L694"></a><tt class="py-lineno">694</tt>  <tt class="py-line">                 </tt>
<a name="L695"></a><tt class="py-lineno">695</tt>  <tt class="py-line"> </tt>
<a name="FastAndSimple.horizontal_compaction_down_left"></a><div id="FastAndSimple.horizontal_compaction_down_left-def"><a name="L696"></a><tt class="py-lineno">696</tt> <a class="py-toggle" href="#" id="FastAndSimple.horizontal_compaction_down_left-toggle" onclick="return toggle('FastAndSimple.horizontal_compaction_down_left');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#horizontal_compaction_down_left">horizontal_compaction_down_left</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.horizontal_compaction_down_left-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.horizontal_compaction_down_left-expanded"><a name="L697"></a><tt class="py-lineno">697</tt>  <tt class="py-line">        <tt class="py-docstring">"""Final X-coordinate assignment phase (ALG3) for lower left."""</tt> </tt>
<a name="L698"></a><tt class="py-lineno">698</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Horizontal Compaction down left..."</tt> </tt>
<a name="L699"></a><tt class="py-lineno">699</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L700"></a><tt class="py-lineno">700</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L701"></a><tt class="py-lineno">701</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-string">"infinity"</tt><tt class="py-op">)</tt> </tt>
<a name="L702"></a><tt class="py-lineno">702</tt>  <tt class="py-line">         </tt>
<a name="L703"></a><tt class="py-lineno">703</tt>  <tt class="py-line">        <tt class="py-name">num_layers</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">)</tt> </tt>
<a name="L704"></a><tt class="py-lineno">704</tt>  <tt class="py-line">        <tt class="py-comment"># root coordinates relative to self.sink        </tt> </tt>
<a name="L705"></a><tt class="py-lineno">705</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-name">num_layers</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L706"></a><tt class="py-lineno">706</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L707"></a><tt class="py-lineno">707</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">:</tt> </tt>
<a name="L708"></a><tt class="py-lineno">708</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-77" class="py-name"><a title="fastandsimple.FastAndSimple.place_block_left" class="py-name" href="#" onclick="return doclink('link-77', 'place_block_left', 'link-74');">place_block_left</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">)</tt> </tt>
<a name="L709"></a><tt class="py-lineno">709</tt>  <tt class="py-line">                 </tt>
<a name="L710"></a><tt class="py-lineno">710</tt>  <tt class="py-line">        <tt class="py-comment"># absolute coordinates</tt> </tt>
<a name="L711"></a><tt class="py-lineno">711</tt>  <tt class="py-line">        <tt class="py-comment">#for v in self.g.nodes:</tt> </tt>
<a name="L712"></a><tt class="py-lineno">712</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-name">num_layers</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L713"></a><tt class="py-lineno">713</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L714"></a><tt class="py-lineno">714</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> </tt>
<a name="L715"></a><tt class="py-lineno">715</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">==</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-keyword">and</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-string">"infinity"</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L716"></a><tt class="py-lineno">716</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">+</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt>     </tt>
</div><a name="L717"></a><tt class="py-lineno">717</tt>  <tt class="py-line">             </tt>
<a name="FastAndSimple.horizontal_compaction_up_right"></a><div id="FastAndSimple.horizontal_compaction_up_right-def"><a name="L718"></a><tt class="py-lineno">718</tt> <a class="py-toggle" href="#" id="FastAndSimple.horizontal_compaction_up_right-toggle" onclick="return toggle('FastAndSimple.horizontal_compaction_up_right');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#horizontal_compaction_up_right">horizontal_compaction_up_right</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.horizontal_compaction_up_right-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.horizontal_compaction_up_right-expanded"><a name="L719"></a><tt class="py-lineno">719</tt>  <tt class="py-line">        <tt class="py-docstring">"""Final X-coordinate assignment phase (ALG3) for upper right."""</tt> </tt>
<a name="L720"></a><tt class="py-lineno">720</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Horizontal Compaction up right..."</tt> </tt>
<a name="L721"></a><tt class="py-lineno">721</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L722"></a><tt class="py-lineno">722</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L723"></a><tt class="py-lineno">723</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-string">"infinity"</tt><tt class="py-op">)</tt> </tt>
<a name="L724"></a><tt class="py-lineno">724</tt>  <tt class="py-line">     </tt>
<a name="L725"></a><tt class="py-lineno">725</tt>  <tt class="py-line">        <tt class="py-comment"># root coordinates relative to self.sink</tt> </tt>
<a name="L726"></a><tt class="py-lineno">726</tt>  <tt class="py-line">         </tt>
<a name="L727"></a><tt class="py-lineno">727</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L728"></a><tt class="py-lineno">728</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-op">:</tt><tt class="py-op">:</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L729"></a><tt class="py-lineno">729</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">:</tt> </tt>
<a name="L730"></a><tt class="py-lineno">730</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-78" class="py-name"><a title="fastandsimple.FastAndSimple.place_block_right" class="py-name" href="#" onclick="return doclink('link-78', 'place_block_right', 'link-75');">place_block_right</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">)</tt> </tt>
<a name="L731"></a><tt class="py-lineno">731</tt>  <tt class="py-line">                     </tt>
<a name="L732"></a><tt class="py-lineno">732</tt>  <tt class="py-line">        <tt class="py-comment"># absolute coordinates</tt> </tt>
<a name="L733"></a><tt class="py-lineno">733</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L734"></a><tt class="py-lineno">734</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-op">:</tt><tt class="py-op">:</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L735"></a><tt class="py-lineno">735</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> </tt>
<a name="L736"></a><tt class="py-lineno">736</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">==</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-keyword">and</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-string">"infinity"</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L737"></a><tt class="py-lineno">737</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> </tt>
</div><a name="L738"></a><tt class="py-lineno">738</tt>  <tt class="py-line">                     </tt>
<a name="FastAndSimple.horizontal_compaction_down_right"></a><div id="FastAndSimple.horizontal_compaction_down_right-def"><a name="L739"></a><tt class="py-lineno">739</tt> <a class="py-toggle" href="#" id="FastAndSimple.horizontal_compaction_down_right-toggle" onclick="return toggle('FastAndSimple.horizontal_compaction_down_right');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#horizontal_compaction_down_right">horizontal_compaction_down_right</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.horizontal_compaction_down_right-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.horizontal_compaction_down_right-expanded"><a name="L740"></a><tt class="py-lineno">740</tt>  <tt class="py-line">        <tt class="py-docstring">"""Final X-coordinate assignment phase (ALG3) for lower right."""</tt> </tt>
<a name="L741"></a><tt class="py-lineno">741</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Horizontal Compaction down right..."</tt> </tt>
<a name="L742"></a><tt class="py-lineno">742</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L743"></a><tt class="py-lineno">743</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">v</tt> </tt>
<a name="L744"></a><tt class="py-lineno">744</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-string">"infinity"</tt><tt class="py-op">)</tt> </tt>
<a name="L745"></a><tt class="py-lineno">745</tt>  <tt class="py-line">     </tt>
<a name="L746"></a><tt class="py-lineno">746</tt>  <tt class="py-line">        <tt class="py-name">num_layers</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">)</tt> </tt>
<a name="L747"></a><tt class="py-lineno">747</tt>  <tt class="py-line">        <tt class="py-comment"># root coordinates relative to self.sink</tt> </tt>
<a name="L748"></a><tt class="py-lineno">748</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-name">num_layers</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L749"></a><tt class="py-lineno">749</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-op">:</tt><tt class="py-op">:</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L750"></a><tt class="py-lineno">750</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">v</tt><tt class="py-op">:</tt> </tt>
<a name="L751"></a><tt class="py-lineno">751</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-79" class="py-name"><a title="fastandsimple.FastAndSimple.place_block_right" class="py-name" href="#" onclick="return doclink('link-79', 'place_block_right', 'link-75');">place_block_right</a></tt><tt class="py-op">(</tt><tt class="py-name">v</tt><tt class="py-op">)</tt> </tt>
<a name="L752"></a><tt class="py-lineno">752</tt>  <tt class="py-line">                     </tt>
<a name="L753"></a><tt class="py-lineno">753</tt>  <tt class="py-line">        <tt class="py-comment"># absolute coordinates</tt> </tt>
<a name="L754"></a><tt class="py-lineno">754</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">xrange</tt><tt class="py-op">(</tt><tt class="py-name">num_layers</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">,</tt> <tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L755"></a><tt class="py-lineno">755</tt>  <tt class="py-line">            <tt class="py-keyword">for</tt> <tt class="py-name">v</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-op">:</tt><tt class="py-op">:</tt><tt class="py-op">-</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L756"></a><tt class="py-lineno">756</tt>  <tt class="py-line">                <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> </tt>
<a name="L757"></a><tt class="py-lineno">757</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">v</tt><tt class="py-op">==</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">root</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-keyword">and</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-string">"infinity"</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L758"></a><tt class="py-lineno">758</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">shift</tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">sink</tt><tt class="py-op">[</tt><tt class="py-name">v</tt><tt class="py-op">]</tt><tt class="py-op">]</tt>             </tt>
</div><a name="L759"></a><tt class="py-lineno">759</tt>  <tt class="py-line">     </tt>
<a name="FastAndSimple.node_sort_heuristic"></a><div id="FastAndSimple.node_sort_heuristic-def"><a name="L760"></a><tt class="py-lineno">760</tt> <a class="py-toggle" href="#" id="FastAndSimple.node_sort_heuristic-toggle" onclick="return toggle('FastAndSimple.node_sort_heuristic');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#node_sort_heuristic">node_sort_heuristic</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.node_sort_heuristic-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.node_sort_heuristic-expanded"><a name="L761"></a><tt class="py-lineno">761</tt>  <tt class="py-line">        <tt class="py-docstring">"""Sorts the resulting one-way layout nodes for the case any overlap occurs."""</tt> </tt>
<a name="L762"></a><tt class="py-lineno">762</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L763"></a><tt class="py-lineno">763</tt>  <tt class="py-line">            <tt class="py-comment">#xcoords = [self.x[node] for node in self.g.layers[layer]]</tt> </tt>
<a name="L764"></a><tt class="py-lineno">764</tt>  <tt class="py-line">            <tt class="py-name">this_layer</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> </tt>
<a name="L765"></a><tt class="py-lineno">765</tt>  <tt class="py-line">            <tt class="py-name">n</tt> <tt class="py-op">=</tt> <tt class="py-name">this_layer</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L766"></a><tt class="py-lineno">766</tt>  <tt class="py-line">            <tt class="py-name">finished</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L767"></a><tt class="py-lineno">767</tt>  <tt class="py-line">            <tt class="py-keyword">while</tt> <tt class="py-keyword">not</tt> <tt class="py-name">finished</tt><tt class="py-op">:</tt> </tt>
<a name="L768"></a><tt class="py-lineno">768</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt> <tt class="py-keyword">and</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">n</tt><tt class="py-op">]</tt> <tt class="py-op">&gt;=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L769"></a><tt class="py-lineno">769</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">n</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">[</tt><tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt><tt class="py-op">]</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt> </tt>
<a name="L770"></a><tt class="py-lineno">770</tt>  <tt class="py-line">                    <tt class="py-name">n</tt> <tt class="py-op">=</tt> <tt class="py-name">this_layer</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L771"></a><tt class="py-lineno">771</tt>  <tt class="py-line">                    <tt class="py-keyword">continue</tt> </tt>
<a name="L772"></a><tt class="py-lineno">772</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt><tt class="py-op">:</tt> </tt>
<a name="L773"></a><tt class="py-lineno">773</tt>  <tt class="py-line">                    <tt class="py-name">n</tt> <tt class="py-op">=</tt> <tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt> </tt>
<a name="L774"></a><tt class="py-lineno">774</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L775"></a><tt class="py-lineno">775</tt>  <tt class="py-line">                    <tt class="py-name">finished</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
</div><a name="L776"></a><tt class="py-lineno">776</tt>  <tt class="py-line">                     </tt>
<a name="FastAndSimple.node_sort_combined_heuristic"></a><div id="FastAndSimple.node_sort_combined_heuristic-def"><a name="L777"></a><tt class="py-lineno">777</tt> <a class="py-toggle" href="#" id="FastAndSimple.node_sort_combined_heuristic-toggle" onclick="return toggle('FastAndSimple.node_sort_combined_heuristic');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#node_sort_combined_heuristic">node_sort_combined_heuristic</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.node_sort_combined_heuristic-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.node_sort_combined_heuristic-expanded"><a name="L778"></a><tt class="py-lineno">778</tt>  <tt class="py-line">        <tt class="py-docstring">"""Sorts the resulting combined layout nodes for the case any overlap occurs."""</tt> </tt>
<a name="L779"></a><tt class="py-lineno">779</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L780"></a><tt class="py-lineno">780</tt>  <tt class="py-line">            <tt class="py-name">this_layer</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> </tt>
<a name="L781"></a><tt class="py-lineno">781</tt>  <tt class="py-line">            <tt class="py-name">n</tt> <tt class="py-op">=</tt> <tt class="py-name">this_layer</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L782"></a><tt class="py-lineno">782</tt>  <tt class="py-line">            <tt class="py-name">finished</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L783"></a><tt class="py-lineno">783</tt>  <tt class="py-line">            <tt class="py-keyword">while</tt> <tt class="py-keyword">not</tt> <tt class="py-name">finished</tt><tt class="py-op">:</tt> </tt>
<a name="L784"></a><tt class="py-lineno">784</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt> <tt class="py-keyword">and</tt> <tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">&gt;=</tt> <tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">:</tt> </tt>
<a name="L785"></a><tt class="py-lineno">785</tt>  <tt class="py-line">                    <tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">minimum_distance</tt> </tt>
<a name="L786"></a><tt class="py-lineno">786</tt>  <tt class="py-line">                    <tt class="py-name">n</tt> <tt class="py-op">=</tt> <tt class="py-name">this_layer</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L787"></a><tt class="py-lineno">787</tt>  <tt class="py-line">                    <tt class="py-keyword">continue</tt> </tt>
<a name="L788"></a><tt class="py-lineno">788</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt><tt class="py-op">:</tt> </tt>
<a name="L789"></a><tt class="py-lineno">789</tt>  <tt class="py-line">                    <tt class="py-name">n</tt> <tt class="py-op">=</tt> <tt class="py-name">n</tt><tt class="py-op">.</tt><tt class="py-name">succ</tt> </tt>
<a name="L790"></a><tt class="py-lineno">790</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L791"></a><tt class="py-lineno">791</tt>  <tt class="py-line">                    <tt class="py-name">finished</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
</div><a name="L792"></a><tt class="py-lineno">792</tt>  <tt class="py-line">                     </tt>
<a name="FastAndSimple.write_positions"></a><div id="FastAndSimple.write_positions-def"><a name="L793"></a><tt class="py-lineno">793</tt> <a class="py-toggle" href="#" id="FastAndSimple.write_positions-toggle" onclick="return toggle('FastAndSimple.write_positions');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#write_positions">write_positions</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.write_positions-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.write_positions-expanded"><a name="L794"></a><tt class="py-lineno">794</tt>  <tt class="py-line">        <tt class="py-docstring">"""Writes the positions of each node to a txt file for LEDA to process it."""</tt> </tt>
<a name="L795"></a><tt class="py-lineno">795</tt>  <tt class="py-line">        <tt class="py-name">f</tt> <tt class="py-op">=</tt> <tt class="py-name">open</tt><tt class="py-op">(</tt><tt class="py-string">"positions.txt"</tt><tt class="py-op">,</tt> <tt class="py-string">"w"</tt><tt class="py-op">)</tt> </tt>
<a name="L796"></a><tt class="py-lineno">796</tt>  <tt class="py-line">        <tt class="py-name">f</tt><tt class="py-op">.</tt><tt class="py-name">write</tt><tt class="py-op">(</tt><tt class="py-string">"%d\n"</tt> <tt class="py-op">%</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L797"></a><tt class="py-lineno">797</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">layer</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">:</tt> </tt>
<a name="L798"></a><tt class="py-lineno">798</tt>  <tt class="py-line">            <tt class="py-name">this_layer</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">layers</tt><tt class="py-op">[</tt><tt class="py-name">layer</tt><tt class="py-op">]</tt> </tt>
<a name="L799"></a><tt class="py-lineno">799</tt>  <tt class="py-line">            <tt class="py-name">f</tt><tt class="py-op">.</tt><tt class="py-name">write</tt><tt class="py-op">(</tt><tt class="py-string">"%d "</tt> <tt class="py-op">%</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">this_layer</tt><tt class="py-op">)</tt> <tt class="py-op">+</tt> <tt class="py-string">" "</tt><tt class="py-op">.</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-op">[</tt><tt class="py-string">"%f %f"</tt> <tt class="py-op">%</tt> <tt class="py-op">(</tt><tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-op">-</tt><tt class="py-number">1.0</tt><tt class="py-op">*</tt><tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">y</tt><tt class="py-op">)</tt> <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">this_layer</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> <tt class="py-op">+</tt> <tt class="py-string">"\n"</tt><tt class="py-op">)</tt> </tt>
<a name="L800"></a><tt class="py-lineno">800</tt>  <tt class="py-line">        <tt class="py-name">f</tt><tt class="py-op">.</tt><tt class="py-name">close</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L801"></a><tt class="py-lineno">801</tt>  <tt class="py-line">                 </tt>
<a name="L802"></a><tt class="py-lineno">802</tt>  <tt class="py-line">                 </tt>
<a name="FastAndSimple.write_layers"></a><div id="FastAndSimple.write_layers-def"><a name="L803"></a><tt class="py-lineno">803</tt> <a class="py-toggle" href="#" id="FastAndSimple.write_layers-toggle" onclick="return toggle('FastAndSimple.write_layers');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#write_layers">write_layers</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.write_layers-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.write_layers-expanded"><a name="L804"></a><tt class="py-lineno">804</tt>  <tt class="py-line">        <tt class="py-docstring">"""Writes the layer number of each node to a txt file for LEDA to process it."""</tt> </tt>
<a name="L805"></a><tt class="py-lineno">805</tt>  <tt class="py-line">        <tt class="py-name">f</tt> <tt class="py-op">=</tt> <tt class="py-name">open</tt><tt class="py-op">(</tt><tt class="py-string">"layers.txt"</tt><tt class="py-op">,</tt> <tt class="py-string">"w"</tt><tt class="py-op">)</tt> </tt>
<a name="L806"></a><tt class="py-lineno">806</tt>  <tt class="py-line">        <tt class="py-name">l</tt> <tt class="py-op">=</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">)</tt> </tt>
<a name="L807"></a><tt class="py-lineno">807</tt>  <tt class="py-line">        <tt class="py-name">f</tt><tt class="py-op">.</tt><tt class="py-name">write</tt><tt class="py-op">(</tt><tt class="py-string">"%d\n"</tt> <tt class="py-op">%</tt> <tt class="py-name">l</tt><tt class="py-op">)</tt> </tt>
<a name="L808"></a><tt class="py-lineno">808</tt>  <tt class="py-line">        <tt class="py-name">f</tt><tt class="py-op">.</tt><tt class="py-name">write</tt><tt class="py-op">(</tt><tt class="py-string">" "</tt><tt class="py-op">.</tt><tt class="py-name">join</tt><tt class="py-op">(</tt><tt class="py-op">[</tt><tt class="py-name">str</tt><tt class="py-op">(</tt><tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">layer</tt><tt class="py-op">)</tt> <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L809"></a><tt class="py-lineno">809</tt>  <tt class="py-line">        <tt class="py-name">f</tt><tt class="py-op">.</tt><tt class="py-name">close</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L810"></a><tt class="py-lineno">810</tt>  <tt class="py-line"> </tt>
<a name="FastAndSimple.write_txt"></a><div id="FastAndSimple.write_txt-def"><a name="L811"></a><tt class="py-lineno">811</tt> <a class="py-toggle" href="#" id="FastAndSimple.write_txt-toggle" onclick="return toggle('FastAndSimple.write_txt');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.FastAndSimple-class.html#write_txt">write_txt</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="FastAndSimple.write_txt-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="FastAndSimple.write_txt-expanded"><a name="L812"></a><tt class="py-lineno">812</tt>  <tt class="py-line">        <tt class="py-docstring">"""Decides whether to write layers or positions file according to the command line argument."""</tt> </tt>
<a name="L813"></a><tt class="py-lineno">813</tt>  <tt class="py-line">        <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">layersorpositions</tt> <tt class="py-op">==</tt> <tt class="py-string">"layers"</tt><tt class="py-op">:</tt> </tt>
<a name="L814"></a><tt class="py-lineno">814</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-80" class="py-name" targets="Method fastandsimple.FastAndSimple.write_layers()=fastandsimple.FastAndSimple-class.html#write_layers"><a title="fastandsimple.FastAndSimple.write_layers" class="py-name" href="#" onclick="return doclink('link-80', 'write_layers', 'link-80');">write_layers</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L815"></a><tt class="py-lineno">815</tt>  <tt class="py-line">        <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">layersorpositions</tt> <tt class="py-op">==</tt> <tt class="py-string">"positions"</tt><tt class="py-op">:</tt> </tt>
<a name="L816"></a><tt class="py-lineno">816</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-81" class="py-name" targets="Method fastandsimple.FastAndSimple.write_positions()=fastandsimple.FastAndSimple-class.html#write_positions"><a title="fastandsimple.FastAndSimple.write_positions" class="py-name" href="#" onclick="return doclink('link-81', 'write_positions', 'link-81');">write_positions</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L817"></a><tt class="py-lineno">817</tt>  <tt class="py-line">        <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L818"></a><tt class="py-lineno">818</tt>  <tt class="py-line">            <tt class="py-keyword">print</tt> <tt class="py-string">"Unknown txt type: %s. It should be either layers or positions"</tt> <tt class="py-op">%</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">layersorpositions</tt> </tt>
</div></div><a name="L819"></a><tt class="py-lineno">819</tt>  <tt class="py-line"> </tt>
<a name="Aligner"></a><div id="Aligner-def"><a name="L820"></a><tt class="py-lineno">820</tt> <a class="py-toggle" href="#" id="Aligner-toggle" onclick="return toggle('Aligner');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="fastandsimple.Aligner-class.html">Aligner</a><tt class="py-op">:</tt> </tt>
</div><div id="Aligner-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="Aligner-expanded"><a name="L821"></a><tt class="py-lineno">821</tt>  <tt class="py-line">    <tt class="py-docstring">"""Utilities for aligning the 4 candidate graphs."""</tt> </tt>
<a name="Aligner.__init__"></a><div id="Aligner.__init__-def"><a name="L822"></a><tt class="py-lineno">822</tt> <a class="py-toggle" href="#" id="Aligner.__init__-toggle" onclick="return toggle('Aligner.__init__');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.Aligner-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">graphs</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Aligner.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Aligner.__init__-expanded"><a name="L823"></a><tt class="py-lineno">823</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Combiner..."</tt> </tt>
<a name="L824"></a><tt class="py-lineno">824</tt>  <tt class="py-line">        <tt class="py-comment"># Store x values</tt> </tt>
<a name="L825"></a><tt class="py-lineno">825</tt>  <tt class="py-line">        <tt class="py-name">x_ul</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L826"></a><tt class="py-lineno">826</tt>  <tt class="py-line">        <tt class="py-name">x_dl</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L827"></a><tt class="py-lineno">827</tt>  <tt class="py-line">        <tt class="py-name">x_ur</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L828"></a><tt class="py-lineno">828</tt>  <tt class="py-line">        <tt class="py-name">x_dr</tt> <tt class="py-op">=</tt> <tt class="py-op">{</tt><tt class="py-op">}</tt> </tt>
<a name="L829"></a><tt class="py-lineno">829</tt>  <tt class="py-line">         </tt>
<a name="L830"></a><tt class="py-lineno">830</tt>  <tt class="py-line">        <tt class="py-name">names</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-string">"ul"</tt><tt class="py-op">,</tt><tt class="py-string">"ur"</tt><tt class="py-op">,</tt><tt class="py-string">"dl"</tt><tt class="py-op">,</tt><tt class="py-string">"dr"</tt><tt class="py-op">]</tt> </tt>
<a name="L831"></a><tt class="py-lineno">831</tt>  <tt class="py-line">        <tt class="py-comment"># Find the reference graph.</tt> </tt>
<a name="L832"></a><tt class="py-lineno">832</tt>  <tt class="py-line">        <tt class="py-name">min_width</tt> <tt class="py-op">=</tt> <tt class="py-name">float</tt><tt class="py-op">(</tt><tt class="py-string">"infinity"</tt><tt class="py-op">)</tt> </tt>
<a name="L833"></a><tt class="py-lineno">833</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">graph</tt> <tt class="py-keyword">in</tt> <tt class="py-name">graphs</tt><tt class="py-op">:</tt> </tt>
<a name="L834"></a><tt class="py-lineno">834</tt>  <tt class="py-line">            <tt class="py-name">w</tt> <tt class="py-op">=</tt> <tt class="py-name">graph</tt><tt class="py-op">.</tt><tt id="link-82" class="py-name" targets="Method pygml.Graph.get_width()=pygml.Graph-class.html#get_width"><a title="pygml.Graph.get_width" class="py-name" href="#" onclick="return doclink('link-82', 'get_width', 'link-82');">get_width</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L835"></a><tt class="py-lineno">835</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt>  <tt class="py-name">w</tt> <tt class="py-op">&lt;</tt> <tt class="py-name">min_width</tt><tt class="py-op">:</tt> </tt>
<a name="L836"></a><tt class="py-lineno">836</tt>  <tt class="py-line">                <tt class="py-name">min_width</tt> <tt class="py-op">=</tt> <tt class="py-name">w</tt> </tt>
<a name="L837"></a><tt class="py-lineno">837</tt>  <tt class="py-line">                <tt class="py-name">reference_graph</tt> <tt class="py-op">=</tt> <tt class="py-name">graph</tt> </tt>
<a name="L838"></a><tt class="py-lineno">838</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">reference_direction</tt> <tt class="py-op">=</tt> <tt class="py-name">names</tt><tt class="py-op">[</tt><tt class="py-name">graphs</tt><tt class="py-op">.</tt><tt class="py-name">index</tt><tt class="py-op">(</tt><tt class="py-name">reference_graph</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt>
<a name="L839"></a><tt class="py-lineno">839</tt>  <tt class="py-line">        <tt class="py-op">(</tt><tt class="py-name">ul</tt><tt class="py-op">,</tt> <tt class="py-name">ur</tt><tt class="py-op">,</tt> <tt class="py-name">dl</tt><tt class="py-op">,</tt> <tt class="py-name">dr</tt><tt class="py-op">)</tt> <tt class="py-op">=</tt> <tt class="py-name">graphs</tt> </tt>
<a name="L840"></a><tt class="py-lineno">840</tt>  <tt class="py-line">         </tt>
<a name="L841"></a><tt class="py-lineno">841</tt>  <tt class="py-line">        <tt class="py-name">min_ref</tt> <tt class="py-op">=</tt> <tt class="py-name">reference_graph</tt><tt class="py-op">.</tt><tt id="link-83" class="py-name" targets="Method pygml.Graph.min_x()=pygml.Graph-class.html#min_x"><a title="pygml.Graph.min_x" class="py-name" href="#" onclick="return doclink('link-83', 'min_x', 'link-83');">min_x</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt>         </tt>
<a name="L842"></a><tt class="py-lineno">842</tt>  <tt class="py-line">        <tt class="py-name">max_ref</tt> <tt class="py-op">=</tt> <tt class="py-name">reference_graph</tt><tt class="py-op">.</tt><tt id="link-84" class="py-name" targets="Method pygml.Graph.max_x()=pygml.Graph-class.html#max_x"><a title="pygml.Graph.max_x" class="py-name" href="#" onclick="return doclink('link-84', 'max_x', 'link-84');">max_x</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L843"></a><tt class="py-lineno">843</tt>  <tt class="py-line"> </tt>
<a name="L844"></a><tt class="py-lineno">844</tt>  <tt class="py-line"> </tt>
<a name="L845"></a><tt class="py-lineno">845</tt>  <tt class="py-line">        <tt class="py-comment"># Shift left</tt> </tt>
<a name="L846"></a><tt class="py-lineno">846</tt>  <tt class="py-line">        <tt class="py-name">min_ul</tt> <tt class="py-op">=</tt> <tt class="py-name">ul</tt><tt class="py-op">.</tt><tt id="link-85" class="py-name"><a title="pygml.Graph.min_x" class="py-name" href="#" onclick="return doclink('link-85', 'min_x', 'link-83');">min_x</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L847"></a><tt class="py-lineno">847</tt>  <tt class="py-line">        <tt class="py-name">min_dl</tt> <tt class="py-op">=</tt> <tt class="py-name">dl</tt><tt class="py-op">.</tt><tt id="link-86" class="py-name"><a title="pygml.Graph.min_x" class="py-name" href="#" onclick="return doclink('link-86', 'min_x', 'link-83');">min_x</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L848"></a><tt class="py-lineno">848</tt>  <tt class="py-line">     </tt>
<a name="L849"></a><tt class="py-lineno">849</tt>  <tt class="py-line">        <tt class="py-name">difference</tt> <tt class="py-op">=</tt> <tt class="py-name">min_ul</tt> <tt class="py-op">-</tt> <tt class="py-name">min_ref</tt> </tt>
<a name="L850"></a><tt class="py-lineno">850</tt>  <tt class="py-line">         </tt>
<a name="L851"></a><tt class="py-lineno">851</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">ul</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L852"></a><tt class="py-lineno">852</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">reference_graph</tt> <tt class="py-op">!=</tt> <tt class="py-name">ul</tt><tt class="py-op">:</tt> </tt>
<a name="L853"></a><tt class="py-lineno">853</tt>  <tt class="py-line">                <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-=</tt> <tt class="py-name">difference</tt> </tt>
<a name="L854"></a><tt class="py-lineno">854</tt>  <tt class="py-line">            <tt class="py-name">x_ul</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L855"></a><tt class="py-lineno">855</tt>  <tt class="py-line">             </tt>
<a name="L856"></a><tt class="py-lineno">856</tt>  <tt class="py-line">        <tt class="py-name">difference</tt> <tt class="py-op">=</tt> <tt class="py-name">min_dl</tt> <tt class="py-op">-</tt> <tt class="py-name">min_ref</tt> </tt>
<a name="L857"></a><tt class="py-lineno">857</tt>  <tt class="py-line">         </tt>
<a name="L858"></a><tt class="py-lineno">858</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">dl</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L859"></a><tt class="py-lineno">859</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">reference_graph</tt> <tt class="py-op">!=</tt> <tt class="py-name">dl</tt><tt class="py-op">:</tt> </tt>
<a name="L860"></a><tt class="py-lineno">860</tt>  <tt class="py-line">                <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-=</tt> <tt class="py-name">difference</tt> </tt>
<a name="L861"></a><tt class="py-lineno">861</tt>  <tt class="py-line">            <tt class="py-name">x_dl</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L862"></a><tt class="py-lineno">862</tt>  <tt class="py-line">        <tt class="py-comment"># Shift right</tt> </tt>
<a name="L863"></a><tt class="py-lineno">863</tt>  <tt class="py-line">         </tt>
<a name="L864"></a><tt class="py-lineno">864</tt>  <tt class="py-line">        <tt class="py-name">max_ur</tt> <tt class="py-op">=</tt> <tt class="py-name">ur</tt><tt class="py-op">.</tt><tt id="link-87" class="py-name"><a title="pygml.Graph.max_x" class="py-name" href="#" onclick="return doclink('link-87', 'max_x', 'link-84');">max_x</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L865"></a><tt class="py-lineno">865</tt>  <tt class="py-line">        <tt class="py-name">max_dr</tt> <tt class="py-op">=</tt> <tt class="py-name">dr</tt><tt class="py-op">.</tt><tt id="link-88" class="py-name"><a title="pygml.Graph.max_x" class="py-name" href="#" onclick="return doclink('link-88', 'max_x', 'link-84');">max_x</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L866"></a><tt class="py-lineno">866</tt>  <tt class="py-line">         </tt>
<a name="L867"></a><tt class="py-lineno">867</tt>  <tt class="py-line">        <tt class="py-name">difference</tt> <tt class="py-op">=</tt> <tt class="py-name">max_ur</tt> <tt class="py-op">-</tt> <tt class="py-name">max_ref</tt> </tt>
<a name="L868"></a><tt class="py-lineno">868</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">ur</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L869"></a><tt class="py-lineno">869</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">reference_graph</tt> <tt class="py-op">!=</tt> <tt class="py-name">ur</tt><tt class="py-op">:</tt>         </tt>
<a name="L870"></a><tt class="py-lineno">870</tt>  <tt class="py-line">                <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-=</tt> <tt class="py-name">difference</tt> </tt>
<a name="L871"></a><tt class="py-lineno">871</tt>  <tt class="py-line">            <tt class="py-name">x_ur</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L872"></a><tt class="py-lineno">872</tt>  <tt class="py-line">     </tt>
<a name="L873"></a><tt class="py-lineno">873</tt>  <tt class="py-line">        <tt class="py-name">difference</tt> <tt class="py-op">=</tt> <tt class="py-name">max_dr</tt> <tt class="py-op">-</tt> <tt class="py-name">max_ref</tt> </tt>
<a name="L874"></a><tt class="py-lineno">874</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">node</tt> <tt class="py-keyword">in</tt> <tt class="py-name">dr</tt><tt class="py-op">.</tt><tt class="py-name">nodes</tt><tt class="py-op">:</tt> </tt>
<a name="L875"></a><tt class="py-lineno">875</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-name">reference_graph</tt> <tt class="py-op">!=</tt> <tt class="py-name">dr</tt><tt class="py-op">:</tt> </tt>
<a name="L876"></a><tt class="py-lineno">876</tt>  <tt class="py-line">                <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">-=</tt> <tt class="py-name">difference</tt> </tt>
<a name="L877"></a><tt class="py-lineno">877</tt>  <tt class="py-line">            <tt class="py-name">x_dr</tt><tt class="py-op">[</tt><tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">id</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">node</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> </tt>
<a name="L878"></a><tt class="py-lineno">878</tt>  <tt class="py-line">     </tt>
<a name="L879"></a><tt class="py-lineno">879</tt>  <tt class="py-line">         </tt>
<a name="L880"></a><tt class="py-lineno">880</tt>  <tt class="py-line">        <tt class="py-comment"># Average of median</tt> </tt>
<a name="L881"></a><tt class="py-lineno">881</tt>  <tt class="py-line">        <tt class="py-keyword">for</tt> <tt class="py-name">node_id</tt> <tt class="py-keyword">in</tt> <tt class="py-name">x_ul</tt><tt class="py-op">.</tt><tt class="py-name">keys</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> <tt class="py-comment"># Not particularly x_ul. As ids are all the same.</tt> </tt>
<a name="L882"></a><tt class="py-lineno">882</tt>  <tt class="py-line">            <tt class="py-name">x_list</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt> <tt class="py-name">x_ul</tt><tt class="py-op">[</tt><tt class="py-name">node_id</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">x_ur</tt><tt class="py-op">[</tt><tt class="py-name">node_id</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">x_dl</tt><tt class="py-op">[</tt><tt class="py-name">node_id</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">x_dr</tt><tt class="py-op">[</tt><tt class="py-name">node_id</tt><tt class="py-op">]</tt> <tt class="py-op">]</tt> </tt>
<a name="L883"></a><tt class="py-lineno">883</tt>  <tt class="py-line">            <tt class="py-name">x_list</tt><tt class="py-op">.</tt><tt class="py-name">sort</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L884"></a><tt class="py-lineno">884</tt>  <tt class="py-line">             </tt>
<a name="L885"></a><tt class="py-lineno">885</tt>  <tt class="py-line">            <tt class="py-name">average</tt> <tt class="py-op">=</tt> <tt class="py-op">(</tt><tt class="py-name">x_list</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">+</tt> <tt class="py-name">x_list</tt><tt class="py-op">[</tt><tt class="py-number">2</tt><tt class="py-op">]</tt><tt class="py-op">)</tt><tt class="py-op">/</tt><tt class="py-number">2</tt> </tt>
<a name="L886"></a><tt class="py-lineno">886</tt>  <tt class="py-line">            <tt class="py-name">reference_graph</tt><tt class="py-op">.</tt><tt id="link-89" class="py-name" targets="Method pygml.Graph.get_node_by_id()=pygml.Graph-class.html#get_node_by_id"><a title="pygml.Graph.get_node_by_id" class="py-name" href="#" onclick="return doclink('link-89', 'get_node_by_id', 'link-89');">get_node_by_id</a></tt><tt class="py-op">(</tt><tt class="py-name">node_id</tt><tt class="py-op">)</tt><tt class="py-op">.</tt><tt class="py-name">graphics</tt><tt class="py-op">.</tt><tt class="py-name">x</tt> <tt class="py-op">=</tt> <tt class="py-name">average</tt> </tt>
<a name="L887"></a><tt class="py-lineno">887</tt>  <tt class="py-line">         </tt>
<a name="L888"></a><tt class="py-lineno">888</tt>  <tt class="py-line">        <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">result</tt> <tt class="py-op">=</tt> <tt class="py-name">reference_graph</tt> </tt>
</div><a name="L889"></a><tt class="py-lineno">889</tt>  <tt class="py-line">         </tt>
<a name="Aligner.get_result"></a><div id="Aligner.get_result-def"><a name="L890"></a><tt class="py-lineno">890</tt> <a class="py-toggle" href="#" id="Aligner.get_result-toggle" onclick="return toggle('Aligner.get_result');">-</a><tt class="py-line">    <tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple.Aligner-class.html#get_result">get_result</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="Aligner.get_result-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="Aligner.get_result-expanded"><a name="L891"></a><tt class="py-lineno">891</tt>  <tt class="py-line">        <tt class="py-docstring">"""Returns the reference graph"""</tt> </tt>
<a name="L892"></a><tt class="py-lineno">892</tt>  <tt class="py-line">        <tt class="py-keyword">return</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">result</tt>             </tt>
</div></div><a name="L893"></a><tt class="py-lineno">893</tt>  <tt class="py-line"> </tt>
<a name="L894"></a><tt class="py-lineno">894</tt>  <tt class="py-line"><tt class="py-comment"># -----------------------------------------</tt> </tt>
<a name="L895"></a><tt class="py-lineno">895</tt>  <tt class="py-line"> </tt>
<a name="L896"></a><tt class="py-lineno">896</tt>  <tt class="py-line"> </tt>
<a name="main"></a><div id="main-def"><a name="L897"></a><tt class="py-lineno">897</tt> <a class="py-toggle" href="#" id="main-toggle" onclick="return toggle('main');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="fastandsimple-module.html#main">main</a><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="main-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="main-expanded"><a name="L898"></a><tt class="py-lineno">898</tt>  <tt class="py-line">    <tt class="py-docstring">"""Main program, handles arguments and starts the FaSCA algorithm accordingly"""</tt> </tt>
<a name="L899"></a><tt class="py-lineno">899</tt>  <tt class="py-line">    <tt class="py-comment"># COMBINED</tt> </tt>
<a name="L900"></a><tt class="py-lineno">900</tt>  <tt class="py-line">    <tt class="py-keyword">if</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">4</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-string">"combined"</tt><tt class="py-op">:</tt> </tt>
<a name="L901"></a><tt class="py-lineno">901</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Up Left"</tt> </tt>
<a name="L902"></a><tt class="py-lineno">902</tt>  <tt class="py-line">        <tt class="py-name">ul</tt> <tt class="py-op">=</tt> <tt id="link-90" class="py-name" targets="Class fastandsimple.FastAndSimple=fastandsimple.FastAndSimple-class.html"><a title="fastandsimple.FastAndSimple" class="py-name" href="#" onclick="return doclink('link-90', 'FastAndSimple', 'link-90');">FastAndSimple</a></tt><tt class="py-op">(</tt><tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">3</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-string">"up"</tt><tt class="py-op">,</tt> <tt class="py-string">"left"</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">6</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L903"></a><tt class="py-lineno">903</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> </tt>
<a name="L904"></a><tt class="py-lineno">904</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Up Right"</tt> </tt>
<a name="L905"></a><tt class="py-lineno">905</tt>  <tt class="py-line">        <tt class="py-name">ur</tt> <tt class="py-op">=</tt> <tt id="link-91" class="py-name"><a title="fastandsimple.FastAndSimple" class="py-name" href="#" onclick="return doclink('link-91', 'FastAndSimple', 'link-90');">FastAndSimple</a></tt><tt class="py-op">(</tt><tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">3</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-string">"up"</tt><tt class="py-op">,</tt> <tt class="py-string">"right"</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">6</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L906"></a><tt class="py-lineno">906</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> </tt>
<a name="L907"></a><tt class="py-lineno">907</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Down Left"</tt> </tt>
<a name="L908"></a><tt class="py-lineno">908</tt>  <tt class="py-line">        <tt class="py-name">dl</tt> <tt class="py-op">=</tt> <tt id="link-92" class="py-name"><a title="fastandsimple.FastAndSimple" class="py-name" href="#" onclick="return doclink('link-92', 'FastAndSimple', 'link-90');">FastAndSimple</a></tt><tt class="py-op">(</tt><tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">3</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-string">"down"</tt><tt class="py-op">,</tt> <tt class="py-string">"left"</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">6</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L909"></a><tt class="py-lineno">909</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> </tt>
<a name="L910"></a><tt class="py-lineno">910</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Down Right"</tt> </tt>
<a name="L911"></a><tt class="py-lineno">911</tt>  <tt class="py-line">        <tt class="py-name">dr</tt> <tt class="py-op">=</tt> <tt id="link-93" class="py-name"><a title="fastandsimple.FastAndSimple" class="py-name" href="#" onclick="return doclink('link-93', 'FastAndSimple', 'link-90');">FastAndSimple</a></tt><tt class="py-op">(</tt><tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">3</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-string">"down"</tt><tt class="py-op">,</tt> <tt class="py-string">"right"</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">6</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L912"></a><tt class="py-lineno">912</tt>  <tt class="py-line">         </tt>
<a name="L913"></a><tt class="py-lineno">913</tt>  <tt class="py-line">         </tt>
<a name="L914"></a><tt class="py-lineno">914</tt>  <tt class="py-line">        <tt class="py-name">aligner</tt> <tt class="py-op">=</tt> <tt id="link-94" class="py-name" targets="Class fastandsimple.Aligner=fastandsimple.Aligner-class.html"><a title="fastandsimple.Aligner" class="py-name" href="#" onclick="return doclink('link-94', 'Aligner', 'link-94');">Aligner</a></tt><tt class="py-op">(</tt><tt class="py-op">(</tt><tt class="py-name">ul</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">,</tt> <tt class="py-name">ur</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">,</tt> <tt class="py-name">dl</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">,</tt> <tt class="py-name">dr</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L915"></a><tt class="py-lineno">915</tt>  <tt class="py-line">        <tt class="py-name">result</tt> <tt class="py-op">=</tt> <tt class="py-name">aligner</tt><tt class="py-op">.</tt><tt id="link-95" class="py-name" targets="Method fastandsimple.Aligner.get_result()=fastandsimple.Aligner-class.html#get_result"><a title="fastandsimple.Aligner.get_result" class="py-name" href="#" onclick="return doclink('link-95', 'get_result', 'link-95');">get_result</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L916"></a><tt class="py-lineno">916</tt>  <tt class="py-line">        <tt class="py-name">fs</tt> <tt class="py-op">=</tt> <tt id="link-96" class="py-name"><a title="fastandsimple.FastAndSimple" class="py-name" href="#" onclick="return doclink('link-96', 'FastAndSimple', 'link-90');">FastAndSimple</a></tt><tt class="py-op">(</tt><tt class="py-name">result</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">3</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">None</tt><tt class="py-op">,</tt> <tt class="py-name">None</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">6</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L917"></a><tt class="py-lineno">917</tt>  <tt class="py-line">         </tt>
<a name="L918"></a><tt class="py-lineno">918</tt>  <tt class="py-line">        <tt class="py-name">fs</tt><tt class="py-op">.</tt><tt id="link-97" class="py-name" targets="Method fastandsimple.FastAndSimple.node_sort_combined_heuristic()=fastandsimple.FastAndSimple-class.html#node_sort_combined_heuristic"><a title="fastandsimple.FastAndSimple.node_sort_combined_heuristic" class="py-name" href="#" onclick="return doclink('link-97', 'node_sort_combined_heuristic', 'link-97');">node_sort_combined_heuristic</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L919"></a><tt class="py-lineno">919</tt>  <tt class="py-line">        <tt class="py-name">fs</tt><tt class="py-op">.</tt><tt id="link-98" class="py-name" targets="Method fastandsimple.FastAndSimple.center_nodes()=fastandsimple.FastAndSimple-class.html#center_nodes"><a title="fastandsimple.FastAndSimple.center_nodes" class="py-name" href="#" onclick="return doclink('link-98', 'center_nodes', 'link-98');">center_nodes</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L920"></a><tt class="py-lineno">920</tt>  <tt class="py-line">        <tt class="py-name">fs</tt><tt class="py-op">.</tt><tt id="link-99" class="py-name" targets="Method fastandsimple.FastAndSimple.straighten_bends()=fastandsimple.FastAndSimple-class.html#straighten_bends"><a title="fastandsimple.FastAndSimple.straighten_bends" class="py-name" href="#" onclick="return doclink('link-99', 'straighten_bends', 'link-99');">straighten_bends</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L921"></a><tt class="py-lineno">921</tt>  <tt class="py-line">        <tt class="py-name">fs</tt><tt class="py-op">.</tt><tt id="link-100" class="py-name" targets="Method fastandsimple.FastAndSimple.hide_dummy_nodes()=fastandsimple.FastAndSimple-class.html#hide_dummy_nodes"><a title="fastandsimple.FastAndSimple.hide_dummy_nodes" class="py-name" href="#" onclick="return doclink('link-100', 'hide_dummy_nodes', 'link-100');">hide_dummy_nodes</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L922"></a><tt class="py-lineno">922</tt>  <tt class="py-line">        <tt class="py-comment">#fs.correct_triple_edge()     # No need for now</tt> </tt>
<a name="L923"></a><tt class="py-lineno">923</tt>  <tt class="py-line">        <tt class="py-comment">#fs.weighted_y_coordinates()  # LEDA does this.</tt> </tt>
<a name="L924"></a><tt class="py-lineno">924</tt>  <tt class="py-line">        <tt class="py-comment">#fs.post_adjustments()</tt> </tt>
<a name="L925"></a><tt class="py-lineno">925</tt>  <tt class="py-line">        <tt class="py-name">fs</tt><tt class="py-op">.</tt><tt id="link-101" class="py-name"><a title="fastandsimple.FastAndSimple.debug" class="py-name" href="#" onclick="return doclink('link-101', 'debug', 'link-7');">debug</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L926"></a><tt class="py-lineno">926</tt>  <tt class="py-line">        <tt class="py-name">fs</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-102" class="py-name" targets="Method pygml.Graph.write_gml()=pygml.Graph-class.html#write_gml"><a title="pygml.Graph.write_gml" class="py-name" href="#" onclick="return doclink('link-102', 'write_gml', 'link-102');">write_gml</a></tt><tt class="py-op">(</tt><tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">2</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L927"></a><tt class="py-lineno">927</tt>  <tt class="py-line">        <tt class="py-name">fs</tt><tt class="py-op">.</tt><tt id="link-103" class="py-name" targets="Method fastandsimple.FastAndSimple.write_txt()=fastandsimple.FastAndSimple-class.html#write_txt"><a title="fastandsimple.FastAndSimple.write_txt" class="py-name" href="#" onclick="return doclink('link-103', 'write_txt', 'link-103');">write_txt</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L928"></a><tt class="py-lineno">928</tt>  <tt class="py-line">    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L929"></a><tt class="py-lineno">929</tt>  <tt class="py-line">        <tt class="py-comment"># SINGLE WAY</tt> </tt>
<a name="L930"></a><tt class="py-lineno">930</tt>  <tt class="py-line">        <tt class="py-name">fs</tt> <tt class="py-op">=</tt> <tt id="link-104" class="py-name"><a title="fastandsimple.FastAndSimple" class="py-name" href="#" onclick="return doclink('link-104', 'FastAndSimple', 'link-90');">FastAndSimple</a></tt><tt class="py-op">(</tt><tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">3</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">4</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">5</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">6</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L931"></a><tt class="py-lineno">931</tt>  <tt class="py-line">        <tt class="py-comment">#fs.color_blocks()</tt> </tt>
<a name="L932"></a><tt class="py-lineno">932</tt>  <tt class="py-line">        <tt class="py-comment">#fs.color_classes()</tt> </tt>
<a name="L933"></a><tt class="py-lineno">933</tt>  <tt class="py-line">        <tt class="py-comment">#fs.node_sort_combined_heuristic()        </tt> </tt>
<a name="L934"></a><tt class="py-lineno">934</tt>  <tt class="py-line">        <tt class="py-comment">#fs.straighten_bends()        </tt> </tt>
<a name="L935"></a><tt class="py-lineno">935</tt>  <tt class="py-line">        <tt class="py-name">fs</tt><tt class="py-op">.</tt><tt id="link-105" class="py-name"><a title="fastandsimple.FastAndSimple.hide_dummy_nodes" class="py-name" href="#" onclick="return doclink('link-105', 'hide_dummy_nodes', 'link-100');">hide_dummy_nodes</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L936"></a><tt class="py-lineno">936</tt>  <tt class="py-line">        <tt class="py-comment">#fs.post_adjustments()</tt> </tt>
<a name="L937"></a><tt class="py-lineno">937</tt>  <tt class="py-line">        <tt class="py-name">fs</tt><tt class="py-op">.</tt><tt class="py-name">g</tt><tt class="py-op">.</tt><tt id="link-106" class="py-name"><a title="pygml.Graph.write_gml" class="py-name" href="#" onclick="return doclink('link-106', 'write_gml', 'link-102');">write_gml</a></tt><tt class="py-op">(</tt><tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">2</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> </tt>
<a name="L938"></a><tt class="py-lineno">938</tt>  <tt class="py-line">        <tt class="py-name">fs</tt><tt class="py-op">.</tt><tt id="link-107" class="py-name"><a title="fastandsimple.FastAndSimple.write_txt" class="py-name" href="#" onclick="return doclink('link-107', 'write_txt', 'link-103');">write_txt</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
</div><a name="L939"></a><tt class="py-lineno">939</tt>  <tt class="py-line">     </tt>
<a name="L940"></a><tt class="py-lineno">940</tt>  <tt class="py-line">    <tt class="py-comment">#import os</tt> </tt>
<a name="L941"></a><tt class="py-lineno">941</tt>  <tt class="py-line">    <tt class="py-comment">#os.system("./graphwin %s &amp;" % sys.argv[2])</tt> </tt>
<a name="L942"></a><tt class="py-lineno">942</tt>  <tt class="py-line"> </tt>
<a name="L943"></a><tt class="py-lineno">943</tt>  <tt class="py-line">     </tt>
<a name="L944"></a><tt class="py-lineno">944</tt>  <tt class="py-line">     </tt>
<a name="L945"></a><tt class="py-lineno">945</tt>  <tt class="py-line"><tt class="py-keyword">if</tt> <tt class="py-name">__name__</tt> <tt class="py-op">==</tt> <tt class="py-string">"__main__"</tt><tt class="py-op">:</tt> </tt>
<a name="L946"></a><tt class="py-lineno">946</tt>  <tt class="py-line">    <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">)</tt> <tt class="py-op">&gt;</tt> <tt class="py-number">4</tt><tt class="py-op">:</tt> </tt>
<a name="L947"></a><tt class="py-lineno">947</tt>  <tt class="py-line">        <tt class="py-comment">#cProfile.run('main()')</tt> </tt>
<a name="L948"></a><tt class="py-lineno">948</tt>  <tt class="py-line">        <tt id="link-108" class="py-name" targets="Function fastandsimple.main()=fastandsimple-module.html#main"><a title="fastandsimple.main" class="py-name" href="#" onclick="return doclink('link-108', 'main', 'link-108');">main</a></tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L949"></a><tt class="py-lineno">949</tt>  <tt class="py-line">    <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L950"></a><tt class="py-lineno">950</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Insufficient parameters"</tt> </tt>
<a name="L951"></a><tt class="py-lineno">951</tt>  <tt class="py-line">        <tt class="py-keyword">print</tt> <tt class="py-string">"Usage: python %s &lt;input file&gt; &lt;output file&gt; &lt;minimum distance&gt; &lt;combined/up/down&gt; [left/right] [layers/positions]"</tt> <tt class="py-op">%</tt> <tt class="py-name">sys</tt><tt class="py-op">.</tt><tt class="py-name">argv</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> </tt>
<a name="L952"></a><tt class="py-lineno">952</tt>  <tt class="py-line"> </tt><script type="text/javascript">
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